diff --git a/src/cmd/vet/all/main.go b/src/cmd/vet/all/main.go
index 64b3a0157a..b4df4cc720 100644
--- a/src/cmd/vet/all/main.go
+++ b/src/cmd/vet/all/main.go
@@ -238,9 +238,9 @@ NextLine:
 		default:
 			if !parseFailed {
 				parseFailed = true
-				fmt.Fprintln(os.Stderr, "failed to parse vet output:")
+				fmt.Fprintf(os.Stderr, "failed to parse %s vet output:\n", p)
 			}
-			fmt.Println(os.Stderr, line)
+			fmt.Fprintln(os.Stderr, line)
 		}
 		msg = strings.TrimSpace(msg)