diff --git a/assets/runtime/functions b/assets/runtime/functions
index 0c5f2eb9..a513f5be 100644
--- a/assets/runtime/functions
+++ b/assets/runtime/functions
@@ -803,8 +803,8 @@ initialize_datadir() {
     if [ ${REDMINE_DATA_DIR} = ${dir} ]; then
       mkdir -p ${dir}
     fi
-    chmod -R u+rw,go+r ${dir}
-    chown -R ${REDMINE_USER}: ${dir}
+    find ${dir} \! -perm -u=wr,go=r -print0 | xargs -0 -r chmod u+rw,go+r
+    find ${dir} \! -user ${REDMINE_USER} -print0 | xargs -0 -r chown ${REDMINE_USER}:
   done
 }