diff --git a/.travis.yml b/.travis.yml
index 153f5c05..d717bfbe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,8 +15,18 @@ install:
   - go get github.com/haya14busa/goverage
 
 matrix:
+  include:
+    - go: 1.12
+      env: GO111MODULE=on
+      before_install:
+        - go mod download
+      install:
+        - go get golang.org/x/lint/golint
+        - go get github.com/haya14busa/goverage
   allow_failures:
     - go: tip
+    - go: 1.12
+      env: GO111MODULE=on
   fast_finish: true
 
 notifications:
@@ -33,4 +43,4 @@ script:
   - golint $LINT_PKGS                                              # lint - ignore failures for now
   
 after_success:
-  - bash <(curl -s https://codecov.io/bash)
+  - bash <(curl -s https://codecov.io/bash)
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 00000000..76e68829
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module github.com/aws/aws-lambda-go
+
+go 1.12
+
+require (
+	github.com/davecgh/go-spew v1.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/testify v1.2.1
+	gopkg.in/urfave/cli.v1 v1.20.0
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 00000000..c9a878ca
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,8 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.2.1 h1:52QO5WkIUcHGIR7EnGagH88x1bUzqGXTC5/1bDTUQ7U=
+github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+gopkg.in/urfave/cli.v1 v1.20.0 h1:NdAVW6RYxDif9DhDHaAortIu956m2c0v+09AZBPTbE0=
+gopkg.in/urfave/cli.v1 v1.20.0/go.mod h1:vuBzUtMdQeixQj8LVd+/98pzhxNGQoyuPBlsXHOQNO0=
diff --git a/lambda/panic_test.go b/lambda/panic_test.go
index 597e76be..92db8fd7 100644
--- a/lambda/panic_test.go
+++ b/lambda/panic_test.go
@@ -112,6 +112,7 @@ func testRuntimeStackTrace(t *testing.T) {
 	assert.NoError(t, err)
 
 	frame := panicInfo.StackTrace[0]
+
 	assert.Equal(t, packagePath+"/panic_test.go", frame.Path)
 	assert.True(t, frame.Line > 0)
 	assert.Equal(t, "testRuntimeStackTrace", frame.Label)
@@ -123,14 +124,16 @@ func getPackagePath() (string, error) {
 		return "", err
 	}
 
-	basePath := os.Getenv("GOPATH")
-	if basePath == "" {
-		if runtime.GOOS == "windows" {
-			basePath = os.Getenv("USERPROFILE") + "/go"
-		} else {
-			basePath = os.Getenv("HOME") + "/go"
-		}
+	var paths []string
+	if runtime.GOOS == "windows" {
+		paths = strings.Split(fullPath, "\\")
+	} else {
+		paths = strings.Split(fullPath, "/")
+	}
+
+	// The frame.Path will only contain the last 5 directories if there are more than 5 directories.
+	if len(paths) >= 5 {
+		paths = paths[len(paths)-4:]
 	}
-	basePath = strings.Split(basePath, ":")[0]
-	return strings.Replace(fullPath, basePath+"/src/", "", 1), nil
+	return strings.Join(paths, "/"), nil
 }