diff --git a/Makefile b/Makefile
index d04cd976..69f34c79 100644
--- a/Makefile
+++ b/Makefile
@@ -44,6 +44,8 @@ style:	## update code style.
 
 lint:	## run pylint linter.
 	pylint ${target_dirs}
+	black ${target_dirs} --check
+	isort ${target_dirs} --check-only
 
 system-deps:	## install linux system deps
 	sudo apt-get install -y libsndfile1-dev