diff --git a/bsp/realview-a8/mk.sh b/bsp/realview-a8/mk.sh
index 540f41c65418766f64b911a78595f9cf5461e513..964009c271c788f072948a5ebf8ce93f864ff95e 100644
--- a/bsp/realview-a8/mk.sh
+++ b/bsp/realview-a8/mk.sh
@@ -6,6 +6,7 @@ KDIR=~/linux-git
 BUILD_ROOT_DIR=/temp-build/buildroot-2014.02/
 
 scons -j20
+mkdir -p $BUILD_ROOT_DIR/output/target/vmm
 cp rtthread.bin $BUILD_ROOT_DIR/output/target/vmm
 
 (