diff --git a/build/scripts/build_cross_tools_gcc4 b/build/scripts/build_cross_tools_gcc4
index 7370582561..41d6a9ee44 100755
--- a/build/scripts/build_cross_tools_gcc4
+++ b/build/scripts/build_cross_tools_gcc4
@@ -27,6 +27,10 @@ esac
 export MAKE
 
 case $haikuMachine in
+x86_64-*)
+	binutilsConfigureArgs="--enable-multilib"
+	gccConfigureArgs="--enable-multilib"
+	;;
 m68k-*)
 	binutilsConfigureArgs="--enable-multilib"
 	gccConfigureArgs="--enable-multilib"