diff --git a/openproject/rootfs/etc/cont-init.d/99-run.sh b/openproject/rootfs/etc/cont-init.d/99-run.sh
index ab3c569da..9848be924 100755
--- a/openproject/rootfs/etc/cont-init.d/99-run.sh
+++ b/openproject/rootfs/etc/cont-init.d/99-run.sh
@@ -5,7 +5,7 @@ bashio::log.info "Starting OpenProject"
 # Ensure persistence for PGDATA and asset folders
 for folder in pg assets; do
     mkdir -p /data/"$folder"
-    if [ -d /config/"$folder" ] && [ "$(ls -A /config/"$folder")" ]; then
+    if [ -d /config/"$folder" ] && [ "$(ls -A /config/"$folder"/)" ]; then
         # Copy only if source is non-empty
         cp -rf /config/"$folder"/. /data/"$folder"/
         rm -rf /config/"$folder"