diff --git a/.github/workflows/extract-translation-source-files.yml b/.github/workflows/extract-translation-source-files.yml
index 1a51abb3575..a1b6866657b 100644
--- a/.github/workflows/extract-translation-source-files.yml
+++ b/.github/workflows/extract-translation-source-files.yml
@@ -26,7 +26,7 @@ jobs:
           script: |
             // Need to use a workaround until https://github.com/actions/toolkit/issues/1576 is fixed
             // const selectedRepo = core.getInput('repo');
-            const selectedRepo = ${{ toJSON(github.event.inputs.repo) }};
+            const selectedRepo = ${{ toJSON(github.event.inputs.repo) }} ?? '';
 
             const allPythonRepos = [
               'AudioXBlock',