diff --git a/protoc-gen-go/golden_test.go b/protoc-gen-go/golden_test.go
index 30d279990..891da84aa 100644
--- a/protoc-gen-go/golden_test.go
+++ b/protoc-gen-go/golden_test.go
@@ -41,8 +41,11 @@ func TestGolden(t *testing.T) {
 	// contains the files for a single package.
 	supportTypeAliases := hasReleaseTag("1.9")
 	packages := map[string][]string{}
+	t.Logf("type aliases: %v", supportTypeAliases)
 	err = filepath.Walk("testdata", func(path string, info os.FileInfo, err error) error {
+		t.Logf("=> %s", filepath.Base(path))
 		if filepath.Base(path) == "import_public" && !supportTypeAliases {
+			t.Logf("   skip")
 			// Public imports require type alias support.
 			return filepath.SkipDir
 		}