diff --git a/Makefile b/Makefile
index 4c06ffd34c..d21435c394 100644
--- a/Makefile
+++ b/Makefile
@@ -139,7 +139,7 @@ clean:
 	rm -f .coverage*
 
 .PHONY: format
-format:
+format: gen-header
 	echo "isort, version `isort --version-number`"
 	isort -m VERTICAL_HANGING_INDENT --skip-gitignore --ac --tc --profile black ./baselines/marl_benchmark/ ./cli ./envision ./examples/ ./utils/ ./scenarios/ ./smarts ./ultra ./zoo
 	black --version