diff --git a/.github/workflows/on-pr-closed.yml b/.github/workflows/on-pr-closed.yml
index 0de5120c..c54e244a 100644
--- a/.github/workflows/on-pr-closed.yml
+++ b/.github/workflows/on-pr-closed.yml
@@ -39,7 +39,7 @@ jobs:
       - name: "Cleanup"
         run: |
           echo "Fetching list of cache key"
-          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH -L 100 | cut -f 1 )
+          cacheKeysForPR=$(gh actions-cache list -R "$REPO" -B "$BRANCH" -L 100 | cut -f 1 )
 
           ## Setting this to not fail the workflow while deleting cache keys.
           set +e
@@ -47,7 +47,7 @@ jobs:
           for cacheKey in $cacheKeysForPR
           do
               echo "Deleting cache key: $cacheKey"
-              gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm
+              gh actions-cache delete "$cacheKey" -R "$REPO" -B "$BRANCH" --confirm
           done
           echo "Done"
         env: