diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3137c10..b4f14a9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,4 +32,9 @@ jobs:
       - name: Show result
         if: always()
         shell: bash # for windlows
-        run: echo '${{ steps.report.outputs.exists-diff }}' >> "$GITHUB_STEP_SUMMARY"
+        run: |
+          {
+            echo '### outputs'
+            echo ''
+            echo '- exists-diff: \`${{ steps.report.outputs.exists-diff }}\`'
+          } >> "$GITHUB_STEP_SUMMARY"