diff --git a/makefiles/git/required.mk b/makefiles/git/required.mk
index 29fba88..44f498d 100644
--- a/makefiles/git/required.mk
+++ b/makefiles/git/required.mk
@@ -26,7 +26,7 @@
 # Makefile can also explicitly define the flag to force always loading.
 # -----------------------------------------------------------------------
 $(foreach tgt,$(git-mk-targets),\
-  $(if $(findstring $(tgt),$(MAKECMDGOALS)),$(eval USE_ONF_GIT_MK := true))\
+  $(if $(findstring $(tgt),$(MAKECMDGOALS)),$(eval USE-ONF-GIT-MK := true))\
 )
 
 # [EOF]