diff --git a/.github/workflows/tag_and_build.yml b/.github/workflows/tag_and_build.yml
index 02f33c2..1c04167 100644
--- a/.github/workflows/tag_and_build.yml
+++ b/.github/workflows/tag_and_build.yml
@@ -23,7 +23,7 @@ jobs:
         id: repo_owner
         uses: ASzc/change-string-case-action@v4
         with:
-        repo_owner: ${{ github.repository_owner }}
+        string: ${{ github.repository_owner }}
 
       - name: Build image
         uses: docker/build-push-action@v4