diff --git a/.github/actions/compress_sign_and_upload/action.yml b/.github/actions/compress_sign_and_upload/action.yml
index a58fe8c2..04e602d3 100644
--- a/.github/actions/compress_sign_and_upload/action.yml
+++ b/.github/actions/compress_sign_and_upload/action.yml
@@ -42,7 +42,7 @@ runs:
     - name: Create detached signature
       uses: mongodb-labs/drivers-github-tools/gpg-sign@v2
       with: 
-        filenames: ${{ steps.get_vars.outputs.package_file }
+        filenames: ${{ steps.get_vars.outputs.package_file }}
       env: 
         RELEASE_ASSETS: ${{ steps.get_vars.outputs.package_file }}.temp.sig