diff --git a/lib/runner.php b/lib/runner.php
index 4b06819..bb6f8f1 100644
--- a/lib/runner.php
+++ b/lib/runner.php
@@ -120,15 +120,15 @@ function export_docblock( $element ) {
 	}
 
 	$output = array(
-		'description'      => $docblock->getShortDescription(),
-		'long_description' => $docblock->getLongDescription()->getFormattedContents(),
+		'description'      => preg_replace( '/[\n\r]+/', ' ', $docblock->getShortDescription() ),
+		'long_description' => preg_replace( '/[\n\r]+/', ' ', $docblock->getLongDescription()->getFormattedContents() ),
 		'tags'             => array(),
 	);
 
 	foreach ( $docblock->getTags() as $tag ) {
 		$t = array(
 			'name'    => $tag->getName(),
-			'content' => $tag->getDescription(),
+			'content' => preg_replace( '/[\n\r]+/', ' ', $tag->getDescription() ),
 		);
 		if ( method_exists( $tag, 'getTypes' ) ) {
 			$t['types'] = $tag->getTypes();
diff --git a/tests/phpunit/tests/export/docblocks.inc b/tests/phpunit/tests/export/docblocks.inc
new file mode 100644
index 0000000..3e0e8b5
--- /dev/null
+++ b/tests/phpunit/tests/export/docblocks.inc
@@ -0,0 +1,64 @@
+<?php
+
+/**
+ * This is the file-level docblock summary.
+ *
+ * This is the file-level docblock description, which may span multiple lines. In
+ * fact, this one does. It spans more than two full lines, continuing on to the
+ * third line.
+ *
+ * @since 1.5.0
+ */
+
+/**
+ * This is a function docblock.
+ *
+ * This function is just a test, but we've added this description anyway.
+ *
+ * @since 2.6.0
+ *
+ * @param string $var A string value.
+ * @param int    $num A number.
+ *
+ * @return bool Whether the function was called correctly.
+ */
+function test_func( $var, $num ) {
+
+	// In real life, there *might* be more stuff in here.
+	return true;
+}
+
+/**
+ * This is a class docblock.
+ *
+ * This is the more wordy description: This is a comment with two *'s at the start,
+ * which means that it is a doc comment. Docblock comments are comment blocks used
+ * to document code. This one documents the Test_Class class.
+ *
+ * @since 3.5.2
+ */
+class Test_Class {
+
+	/**
+	 * This is a docblock for a class property.
+	 *
+	 * @since 3.0.0
+	 *
+	 * @var string
+	 */
+	public $a_string;
+
+	/**
+	 * This is a method docblock.
+	 *
+	 * @since 4.5.0
+	 *
+	 * @param mixed $var A parameter.
+	 * @param array $arr Another parameter.
+	 *
+	 * @return mixed The first param.
+	 */
+	public function test_method( $var, $arr ) {
+		return $var;
+	}
+}
diff --git a/tests/phpunit/tests/export/docblocks.php b/tests/phpunit/tests/export/docblocks.php
new file mode 100644
index 0000000..7bcd6b0
--- /dev/null
+++ b/tests/phpunit/tests/export/docblocks.php
@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * A test case for exporting docblocks.
+ */
+
+namespace WP_Parser\Tests;
+include( '/Users/johngrimes/plugins/jds-dev-tools.php' );// TODO
+/**
+ * Test that docblocks are exported correctly.
+ */
+class Export_Docblocks extends Export_UnitTestCase {
+
+	/**
+	 * Test that line breaks are removed when the description is exported.
+	 */
+	public function test_linebreaks_removed() {
+
+		$this->assertStringMatchesFormat(
+			'%s'
+			, $this->export_data['classes'][0]['doc']['long_description']
+		);
+	}
+}