diff --git a/plugins/builder-dockerfile/builder-release b/plugins/builder-dockerfile/builder-release
index 8f3ac4cbc..3906e904a 100755
--- a/plugins/builder-dockerfile/builder-release
+++ b/plugins/builder-dockerfile/builder-release
@@ -13,6 +13,8 @@ trigger-builder-dockerfile-builder-release() {
 
   # buildstep plugins don't necessarily make sense for dockerfiles. call the new breed!!!
   plugn trigger pre-release-dockerfile "$APP" "$IMAGE_TAG"
+
+  local IMAGE=$(get_app_image_name "$APP" "$IMAGE_TAG")
   echo "FROM $IMAGE" | docker build --label=com.dokku.image-stage=release -t "$IMAGE" -
   plugn trigger post-release-dockerfile "$APP" "$IMAGE_TAG"
 }