diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4da756a..4cec242 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -172,7 +172,7 @@ jobs:
           --build-arg FROM_FLAVOR='${{ matrix.from-flavor }}'
           --build-arg DISTRO='${{ matrix.distro }}'
           --build-arg CODENAME='${{ matrix.codename }}'
-          ${{ github.ref == 'refs/heads/main' && '--push' || format('--output type=docker,dest={0}',  env.PATH_TO_IMAGE) }}
+          ${{ fromJson(env.IS_MAIN) && '--push' || format('--output type=docker,dest={0}',  env.PATH_TO_IMAGE) }}
           --label org.opencontainers.image.authors='${{ env.REPOSITORY_LINK }}, ${{ github.actor }}'
           --label org.opencontainers.image.description='${{ github.event.repository.description }}'
           --label org.opencontainers.image.documentation='${{ env.REPOSITORY_LINK }}'
@@ -183,6 +183,7 @@ jobs:
           --label org.opencontainers.image.vendor='${{ github.repository_owner }}'
           .
         env:
+          IS_MAIN: ${{ github.ref == 'refs/heads/main' }}
           REGISTRY_IMAGE: ${{ format('{0}/{1}', env.REGISTRY, env.IMAGE_REPOSITORY) }}
           REPOSITORY_LINK: https://github.com/${{ github.repository }}