diff --git a/src/infra_version.js b/src/infra_version.js
index e8d75c343..b5ca34e1c 100644
--- a/src/infra_version.js
+++ b/src/infra_version.js
@@ -9,7 +9,7 @@ exports = module.exports = {
     'version': '49.8.0',
 
     // a major version bump in the db containers will trigger the restore logic that uses the db dumps
-    // docker inspect --format='{{index .RepoDigests 0}}' $IMAGE to get the sha256
+    // docker inspect --format='{{index .RepoDigests 0}}' $IMAGE to get the sha256 . note this has registry in it because manifest id is registry specific!
     'images': {
         'base': 'registry.docker.com/cloudron/base:4.2.0@sha256:46da2fffb36353ef714f97ae8e962bd2c212ca091108d768ba473078319a47f4',
         'graphite': 'registry.docker.com/cloudron/graphite:3.4.3@sha256:75df420ece34b31a7ce8d45b932246b7f524c123e1854f5e8f115a9e94e33f20',