diff --git a/Makefile b/Makefile
index d940b1592..f4613fa9c 100644
--- a/Makefile
+++ b/Makefile
@@ -96,7 +96,7 @@ 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))