diff --git a/BaseBuild/Basesys/gcc b/BaseBuild/Basesys/gcc
index 6e66696..9fe1df4 100644
--- a/BaseBuild/Basesys/gcc
+++ b/BaseBuild/Basesys/gcc
@@ -83,6 +83,7 @@ mk() {
 	if [ "$MK64BIT" == "true" ]; then
 		ADDCONFIGURE="--libdir=/usr/lib64 --libexecdir=/usr/lib64"
 		RPATH="/lib64:/lib"
+		BUILDOPTIONS="-m64"
 	else
 		ADDCONFIGURE="--libexecdir=/usr/lib"
 		RPATH="/lib"