diff --git a/scripts/build.sh b/scripts/build.sh
index 4857953..fb57df5 100644
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -352,7 +352,7 @@ EOF
     sudo patchelf --replace-needed libm.so "../linker/$HOST_ARCH/libm.so" "$WORK_DIR"/magisk/magiskpolicy || abort
     sudo patchelf --replace-needed libdl.so "../linker/$HOST_ARCH/libdl.so" "$WORK_DIR"/magisk/magiskpolicy || abort
     sudo patchelf --set-interpreter "../linker/$HOST_ARCH/linker64" "$WORK_DIR"/magisk/magiskpolicy || abort
-    chmod +x "$WORK_DIR"/magisk/magiskpolicy || abort
+    sudo chmod +x "$WORK_DIR"/magisk/magiskpolicy || abort
     TMP_PATH=$(Gen_Rand_Str 8)
     echo "/dev/$TMP_PATH(/.*)?    u:object_r:magisk_file:s0" | sudo tee -a "$MOUNT_DIR"/vendor/etc/selinux/vendor_file_contexts
     echo '/data/adb/magisk(/.*)?   u:object_r:magisk_file:s0' | sudo tee -a "$MOUNT_DIR"/vendor/etc/selinux/vendor_file_contexts