diff --git a/.github/workflows/call_fts3.yml b/.github/workflows/call_fts3.yml
index a1f902e..ed8e277 100644
--- a/.github/workflows/call_fts3.yml
+++ b/.github/workflows/call_fts3.yml
@@ -67,7 +67,7 @@ jobs:
 
   validate_changed_jsons:
     needs: changed-files
-    if: ${{ needs.changed-files.outputs.changed_files != '' }}
+    if: ${{ needs.changed-files.outputs.changed_files }}
     strategy:
       fail-fast: false
       matrix: