diff --git a/thirdparty/x264/HPKBUILD b/thirdparty/x264/HPKBUILD
index fd1409fb2eed6d6a479862e1a1be04236d664528..5c2258fd44fe9e68020e17ba1ff4d4d0a7aa63f8 100644
--- a/thirdparty/x264/HPKBUILD
+++ b/thirdparty/x264/HPKBUILD
@@ -37,7 +37,7 @@ source envset.sh
 host=
 prepare() {
     #拷贝两份，不污染源码目录
-    cp $builddir $builddir-$ARCH-build -rf
+    cp -rf $builddir $builddir-$ARCH-build
     if [ $ARCH == "armeabi-v7a" ]
     then
         setarm32ENV