diff --git a/utils.sh b/utils.sh
index 5673fe47..5f4168e5 100755
--- a/utils.sh
+++ b/utils.sh
@@ -166,7 +166,7 @@ build-docker|docker-build)
 ;;
 
 docker)
-    docker run --rm -it -v "$PWD":/willow -e TERM "$DOCKER_IMAGE" /bin/bash
+    docker run --user build --rm -it -v "$PWD":/willow -e TERM "$DOCKER_IMAGE" /bin/bash
 ;;
 
 flash)