diff --git a/.github/workflows/build-container.yml b/.github/workflows/build-container.yml
index df3640b..f4d398f 100644
--- a/.github/workflows/build-container.yml
+++ b/.github/workflows/build-container.yml
@@ -43,7 +43,7 @@ jobs:
         run: |
           PREFIX="output_image=${GITHUB_REPOSITORY}:${SERIES}"
           echo "${PREFIX}-${OS}-${REPO}" >> ${GITHUB_OUTPUT}
-          echo "registry_image=hub.opensciencegrid.org/${GITHUB_REPOSITORY}"" >> ${GITHUB_OUTPUT}
+          echo "registry_image=hub.opensciencegrid.org/${GITHUB_REPOSITORY}" >> ${GITHUB_OUTPUT}
 
       - name: Harbor login
         # if: >-