diff --git a/Dockerfile b/Dockerfile
index 2fc260fe1f16c6d992422e6b3bf3bcf90711ec33..8e1a027e5153d4b2de020cbd575b0047a162d93c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex \
     && apt-get install --no-install-suggests --no-install-recommends -y rsync curl \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/* \
-    && chmod -Rv 0777 "${GIT_SYNC_ROOT:-/tmp/git}/"
+    && RUN mkdir -m 02775 /sync && chown 65533:65533 /sync
 
 COPY rsync-sync* /