diff --git a/Makefile b/Makefile
index e99f2a0..39c8c74 100644
--- a/Makefile
+++ b/Makefile
@@ -53,6 +53,9 @@ clean:
 	rm -f *.o *.elf *.d lib/*.o lib/*.d
 	find . -type f -name '*.[od]' -exec rm -f {} +
 
+format:
+	find . -type f -name '*.[ch]' -exec clang-format -i {} +
+
 -include *.d
 
 .PHONY: all