diff --git a/src/repository-builder/repository.Dockerfile b/src/repository-builder/repository.Dockerfile
index c4c7744..594dbdb 100644
--- a/src/repository-builder/repository.Dockerfile
+++ b/src/repository-builder/repository.Dockerfile
@@ -1,4 +1,3 @@
-# syntax = docker/dockerfile:1
 ARG ALPINE_DOCKER_IMAGE
 FROM $ALPINE_DOCKER_IMAGE