diff --git a/.github/workflows/build-dev-mock.yaml b/.github/workflows/build-dev-mock.yaml
index 3a5a2dfa..62b40d65 100644
--- a/.github/workflows/build-dev-mock.yaml
+++ b/.github/workflows/build-dev-mock.yaml
@@ -45,7 +45,7 @@ jobs:
           team: aap
           identity_provider: ${{ secrets.NAIS_WORKLOAD_IDENTITY_PROVIDER }}
           project_id: ${{ vars.NAIS_MANAGEMENT_PROJECT_ID }}
-          image_suffix: -dev-gcp-mock
+          image_suffix: dev-gcp-mock
           tag: ${{ github.sha }}
   deployMock:
     needs: buildMock