diff --git a/tools/r1_patcher/r1_patcher.sh b/tools/r1_patcher/r1_patcher.sh
index def1112565..b82a80457d 100755
--- a/tools/r1_patcher/r1_patcher.sh
+++ b/tools/r1_patcher/r1_patcher.sh
@@ -174,7 +174,7 @@ esac
 case "$ACTION" in
     add|"")
         mkdir -p "$MNT"
-        mount -t auto -o flush,noatime "/dev/$MDEV" "$MNT"
+        mount -t auto -o sync,noatime "/dev/$MDEV" "$MNT"
         ;;
     remove)
         umount -l "$MNT"