diff --git a/Mk/tree.mk b/Mk/core.mk
similarity index 100%
rename from Mk/tree.mk
rename to Mk/core.mk
diff --git a/contrib/Makefile b/contrib/Makefile
index 9416d63c9..86bfdb305 100644
--- a/contrib/Makefile
+++ b/contrib/Makefile
@@ -2,4 +2,4 @@ ROOT=	/usr/local/opnsense/contrib
 TREES=	base32 google-api-php-client IXR mobile-broadband-provider-info \
 	simplepie tzdata
 
-.include "../Mk/tree.mk"
+.include "../Mk/core.mk"
diff --git a/src/Makefile b/src/Makefile
index ad33a47d4..79ab6b61c 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -6,4 +6,4 @@ ROOT_man=	/usr/local/share
 EXTRAS=		bootstrap
 TREES_bootstrap=etc/pkg
 
-.include "../Mk/tree.mk"
+.include "../Mk/core.mk"