diff --git a/endtoend_test.go b/endtoend_test.go
index c86f21c..32f1dbe 100644
--- a/endtoend_test.go
+++ b/endtoend_test.go
@@ -30,7 +30,7 @@ func TestEndToEnd(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-//	defer os.RemoveAll(dir)
+	defer os.RemoveAll(dir)
 	// Create stringer in temporary directory.
 	stringer := filepath.Join(dir, "stringer.exe")
 	err = run("go", "build", "-o", stringer, "enumer.go", "stringer.go")