diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 548c686..68869ff 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -68,4 +68,4 @@ build:
         buildah push $FULL_IMAGE_NAME:$TAG
       done
     - IMAGE_DIGEST=$(skopeo inspect --format='{{.Digest}}' docker://$FULL_IMAGE_NAME:$TAGS)
-    - cosign sign $IMAGE_DIGEST
+    - cosign sign $FULL_IMAGE_NAME@$IMAGE_DIGEST