diff --git a/build.sh b/build.sh
index d99e8115..b5047b73 100644
--- a/build.sh
+++ b/build.sh
@@ -43,6 +43,8 @@ FetchWebRelease() {
 
 BuildWinArm64() {
   echo building for windows-arm64
+  chmod +x ./wrapper/zcc-arm64
+  chmod +x ./wrapper/zcxx-arm64
   export GOOS=windows
   export GOARCH=arm64
   export CC=$(pwd)/wrapper/zcc-arm64