diff --git a/Makefile b/Makefile
index bef635ae8..9ddb4fa52 100644
--- a/Makefile
+++ b/Makefile
@@ -83,7 +83,7 @@ endef
 
 # Build tools when building the rom.
 # This has to happen before the rules are processed, since that's when scan_includes is run.
-ifeq (,$(filter clean tools,$(MAKECMDGOALS)))
+ifeq (,$(filter clean tidy tools,$(MAKECMDGOALS)))
 
 $(info $(shell $(MAKE) -C tools))