diff --git a/Makefile b/Makefile
index b3b8ff88..0130c8ac 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,7 @@ teletype.zip: clean-zip
 		docs/cheatsheet/cheatsheet.pdf
 
 format:
-	git-clang-format -f --style=file
+	git-clang-format -f --style=file main
 
 format-all:
 	find . -type f -name "*.c" -o -name "*.h" | xargs clang-format -style=file -i