diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index dae3cfb..4f1c320 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ on:
     branches:
       - 'main'
 
-run-name: Run acceptance tests::Ref=${{ github.event_name == 'pull_request' && 'PR ' + github.ref_name || inputs.test-ref }}
+run-name: Run acceptance tests::Ref=${{ github.event_name == 'pull_request' && format('PR {0}', github.ref_name) || inputs.test-ref }}
 
 env:
   TIMEOUT_LENGTH: 120000