diff --git a/texttospeech/cloud-client/pom.xml b/texttospeech/cloud-client/pom.xml
index f7fca6494d5..43abed00b08 100644
--- a/texttospeech/cloud-client/pom.xml
+++ b/texttospeech/cloud-client/pom.xml
@@ -11,174 +11,174 @@
   limitations under the License.
 -->
 <project>
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>com.example.texttospeech</groupId>
-    <artifactId>tts-samples</artifactId>
-    <packaging>jar</packaging>
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.example.texttospeech</groupId>
+  <artifactId>tts-samples</artifactId>
+  <packaging>jar</packaging>
 
-    <!-- Parent defines config for testing & linting. -->
-    <parent>
-        <artifactId>doc-samples</artifactId>
-        <groupId>com.google.cloud</groupId>
-        <version>1.0.0</version>
-        <relativePath>../..</relativePath>
-    </parent>
+  <!-- Parent defines config for testing & linting. -->
+  <parent>
+    <artifactId>doc-samples</artifactId>
+    <groupId>com.google.cloud</groupId>
+    <version>1.0.0</version>
+    <relativePath>../..</relativePath>
+  </parent>
 
-    <properties>
-        <maven.compiler.target>1.8</maven.compiler.target>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    </properties>
+  <properties>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
 
-    <dependencies>
-        <!-- [START tts_java_dependencies] -->
-        <dependency>
-            <groupId>com.google.cloud</groupId>
-            <artifactId>google-cloud-texttospeech</artifactId>
-            <version>0.70.0-beta</version>
-        </dependency>
-        <dependency>
-            <groupId>net.sourceforge.argparse4j</groupId>
-            <artifactId>argparse4j</artifactId>
-            <version>0.8.1</version>
-        </dependency>
-        <!-- [END tts_java_dependencies] -->
+  <dependencies>
+    <!-- [START tts_java_dependencies] -->
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-texttospeech</artifactId>
+      <version>0.70.0-beta</version>
+    </dependency>
+    <dependency>
+      <groupId>net.sourceforge.argparse4j</groupId>
+      <artifactId>argparse4j</artifactId>
+      <version>0.8.1</version>
+    </dependency>
+    <!-- [END tts_java_dependencies] -->
 
-        <!-- Test dependencies -->
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.12</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.google.truth</groupId>
-            <artifactId>truth</artifactId>
-            <version>0.42</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>0.42</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
 
 
-    <profiles>
-        <!--Quickstart-->
-        <profile>
-            <id>Quickstart</id>
-            <activation>
-                <property>
-                    <name>Quickstart</name>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>exec-maven-plugin</artifactId>
-                        <version>1.6.0</version>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>java</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <mainClass>com.example.texttospeech.QuickstartSample</mainClass>
-                            <cleanupDaemonThreads>false</cleanupDaemonThreads>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
+  <profiles>
+    <!--Quickstart-->
+    <profile>
+      <id>Quickstart</id>
+      <activation>
+        <property>
+          <name>Quickstart</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.codehaus.mojo</groupId>
+            <artifactId>exec-maven-plugin</artifactId>
+            <version>1.6.0</version>
+            <executions>
+              <execution>
+                <goals>
+                  <goal>java</goal>
+                </goals>
+              </execution>
+            </executions>
+            <configuration>
+              <mainClass>com.example.texttospeech.QuickstartSample</mainClass>
+              <cleanupDaemonThreads>false</cleanupDaemonThreads>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
 
-        <!--ListVoices-->
-        <profile>
-            <id>ListVoices</id>
-            <activation>
-                <property>
-                    <name>ListVoices</name>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>exec-maven-plugin</artifactId>
-                        <version>1.6.0</version>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>java</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <mainClass>com.example.texttospeech.ListAllSupportedVoices</mainClass>
-                            <cleanupDaemonThreads>false</cleanupDaemonThreads>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
+    <!--ListVoices-->
+    <profile>
+      <id>ListVoices</id>
+      <activation>
+        <property>
+          <name>ListVoices</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.codehaus.mojo</groupId>
+            <artifactId>exec-maven-plugin</artifactId>
+            <version>1.6.0</version>
+            <executions>
+              <execution>
+                <goals>
+                  <goal>java</goal>
+                </goals>
+              </execution>
+            </executions>
+            <configuration>
+              <mainClass>com.example.texttospeech.ListAllSupportedVoices</mainClass>
+              <cleanupDaemonThreads>false</cleanupDaemonThreads>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
 
-        <!--SynthesizeFile-->
-        <profile>
-            <id>SynthesizeFile</id>
-            <activation>
-                <property>
-                    <name>SynthesizeFile</name>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>exec-maven-plugin</artifactId>
-                        <version>1.6.0</version>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>java</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <mainClass>com.example.texttospeech.SynthesizeFile</mainClass>
-                            <cleanupDaemonThreads>false</cleanupDaemonThreads>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
+    <!--SynthesizeFile-->
+    <profile>
+      <id>SynthesizeFile</id>
+      <activation>
+        <property>
+          <name>SynthesizeFile</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.codehaus.mojo</groupId>
+            <artifactId>exec-maven-plugin</artifactId>
+            <version>1.6.0</version>
+            <executions>
+              <execution>
+                <goals>
+                  <goal>java</goal>
+                </goals>
+              </execution>
+            </executions>
+            <configuration>
+              <mainClass>com.example.texttospeech.SynthesizeFile</mainClass>
+              <cleanupDaemonThreads>false</cleanupDaemonThreads>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
 
-        <!--SynthesizeText-->
-        <profile>
-            <id>SynthesizeText</id>
-            <activation>
-                <property>
-                    <name>SynthesizeText</name>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>exec-maven-plugin</artifactId>
-                        <version>1.6.0</version>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>java</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <mainClass>com.example.texttospeech.SynthesizeText</mainClass>
-                            <cleanupDaemonThreads>false</cleanupDaemonThreads>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
+    <!--SynthesizeText-->
+    <profile>
+      <id>SynthesizeText</id>
+      <activation>
+        <property>
+          <name>SynthesizeText</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.codehaus.mojo</groupId>
+            <artifactId>exec-maven-plugin</artifactId>
+            <version>1.6.0</version>
+            <executions>
+              <execution>
+                <goals>
+                  <goal>java</goal>
+                </goals>
+              </execution>
+            </executions>
+            <configuration>
+              <mainClass>com.example.texttospeech.SynthesizeText</mainClass>
+              <cleanupDaemonThreads>false</cleanupDaemonThreads>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 </project>