diff --git a/core/main.mk b/core/main.mk
index ad1b663..c455320 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -1126,4 +1126,9 @@
 .PHONY: nothing
 nothing:
 	@echo Successfully read the makefiles.
+
+.PHONY: tidy_only
+tidy_only:
+	@echo Successfully make tidy_only.
+
 endif # KATI