diff --git a/.github/workflows/check-update-types.yml b/.github/workflows/check-update-types.yml
index d58299d..aca0175 100644
--- a/.github/workflows/check-update-types.yml
+++ b/.github/workflows/check-update-types.yml
@@ -36,8 +36,7 @@ jobs:
       # Fail if there are changes under chatlas/types and throw a useful error message
       - name: Check for changes
         run: |
-          git diff --exit-code chatlas/types
-          if [ $? -ne 0 ]; then
-            echo "Types are out of date. Please run 'make update-types' and commit the changes."
+          if [[ -n $(git diff chatlas/types) ]]; then
+            echo "::error::Types are out of date. Please run 'make update-types' and commit the changes."
             exit 1
           fi