diff --git a/Makefile b/Makefile
index 2e339762..91ae8275 100644
--- a/Makefile
+++ b/Makefile
@@ -6,3 +6,5 @@ docker:
 
 build_docker: 
 	docker build -t ${DOCKER_NAME} .
+fmt:
+	cd os ; cargo fmt; cd ../user; cargo fmt; cd .. 
\ No newline at end of file