diff --git a/dist/index.js b/dist/index.js
index c6d7121..607119c 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -45939,7 +45939,7 @@ async function format(bufPath, inputs) {
         args.push("--exclude-path", path);
     }
     const result = await run(bufPath, args);
-    if (result.status == Status.Failed) {
+    if (result.status == Status.Failed && result.stdout.startsWith("diff")) {
         // If the format step fails, parse the diff and write github annotations.
         const diff = parse_diff(result.stdout);
         result.stdout = ""; // Clear the stdout.
@@ -45947,6 +45947,7 @@ async function format(bufPath, inputs) {
         for (const file of diff) {
             result.stdout += `::error file=${file.to}::Format failed -${file.deletions} +${file.additions} changes.\n`;
         }
+        console.log(result.stdout);
     }
     return result;
 }
diff --git a/src/main.ts b/src/main.ts
index 0f71772..4d81ede 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -229,7 +229,7 @@ async function format(bufPath: string, inputs: Inputs): Promise<Result> {
     args.push("--exclude-path", path);
   }
   const result = await run(bufPath, args);
-  if (result.status == Status.Failed) {
+  if (result.status == Status.Failed && result.stdout.startsWith("diff")) {
     // If the format step fails, parse the diff and write github annotations.
     const diff = parseDiff(result.stdout);
     result.stdout = ""; // Clear the stdout.
@@ -237,6 +237,7 @@ async function format(bufPath: string, inputs: Inputs): Promise<Result> {
     for (const file of diff) {
       result.stdout += `::error file=${file.to}::Format failed -${file.deletions} +${file.additions} changes.\n`;
     }
+    console.log(result.stdout);
   }
   return result;
 }