diff --git a/packer/environment.go b/packer/environment.go
index 245672d05..62d8ffae0 100644
--- a/packer/environment.go
+++ b/packer/environment.go
@@ -81,8 +81,8 @@ func DefaultEnvironmentConfig() *EnvironmentConfig {
 	config := &EnvironmentConfig{}
 	config.Commands = make([]string, 0)
 	config.Ui = &BasicUi{
-		Reader: os.Stdin,
-		Writer: os.Stdout,
+		Reader:      os.Stdin,
+		Writer:      os.Stdout,
 		ErrorWriter: os.Stderr,
 	}
 
diff --git a/packer/environment_test.go b/packer/environment_test.go
index 7a16803e4..c293c2a9a 100644
--- a/packer/environment_test.go
+++ b/packer/environment_test.go
@@ -30,8 +30,8 @@ func testComponentFinder() *ComponentFinder {
 func testEnvironment() Environment {
 	config := DefaultEnvironmentConfig()
 	config.Ui = &BasicUi{
-		Reader: new(bytes.Buffer),
-		Writer: new(bytes.Buffer),
+		Reader:      new(bytes.Buffer),
+		Writer:      new(bytes.Buffer),
 		ErrorWriter: new(bytes.Buffer),
 	}
 
diff --git a/packer/ui_test.go b/packer/ui_test.go
index 3dd8208e5..08dd530a5 100644
--- a/packer/ui_test.go
+++ b/packer/ui_test.go
@@ -25,8 +25,8 @@ func readErrorWriter(ui *BasicUi) (result string) {
 
 func testUi() *BasicUi {
 	return &BasicUi{
-		Reader: new(bytes.Buffer),
-		Writer: new(bytes.Buffer),
+		Reader:      new(bytes.Buffer),
+		Writer:      new(bytes.Buffer),
 		ErrorWriter: new(bytes.Buffer),
 	}
 }