diff --git a/wrapper/start.sh b/wrapper/start.sh
index b98a287..1d64a93 100644
--- a/wrapper/start.sh
+++ b/wrapper/start.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-# Ensure default dirs exist
+# Ensure the external volumes are mounted and writable
 mkdir -p /cache/app /cache/tmp /cache/prev /data
 
 exec python -u /wrapper/wrapper.py