diff --git a/build-ndk.sh b/build-ndk.sh
index 90497984..2f95588d 100755
--- a/build-ndk.sh
+++ b/build-ndk.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 cd src/main
 ndk-build
+mkdir -p assets/arm
+mkdir -p assets/x86
 for app in iptables pdnsd redsocks shadowsocks tun2socks
 do
     mv libs/armeabi/$app assets/arm/