diff --git a/action.yml b/action.yml
index 13f7d802..b032f0af 100644
--- a/action.yml
+++ b/action.yml
@@ -127,6 +127,7 @@ runs:
       with:
         files: ${{ steps.source-input-files.outputs.files }}
         files-separator: " "
+        separator: "|"
     - run: |
         bash $GITHUB_ACTION_PATH/entrypoint.sh
       id: changed-files