diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e431855..e84e18b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
         run: |
           ./scripts/ci/format-json.sh
           if ! git diff-index --quiet HEAD; then
-            git diff-index HEAD
+            git diff
             echo "Run ./scripts/ci/format-json.sh to reformat the JSON data"
             exit 1
           fi