diff --git a/share/mk/local.gendirdeps.mk b/share/mk/local.gendirdeps.mk
index 024e1cb760d8..47f463ef091e 100644
--- a/share/mk/local.gendirdeps.mk
+++ b/share/mk/local.gendirdeps.mk
@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 # we need a keyword, this noise is to prevent it being expanded
-GENDIRDEPS_HEADER= echo '\# ${FreeBSD:L:@v@$$$v$$ @} ';
+GENDIRDEPS_HEADER= echo '\# ${FreeBSD:L:@v@$$$v$$ @:M*F*}';
 
 # supress optional/auto dependecies
 # local.dirdeps.mk will put them in if necessary