diff --git a/backend/web-bff/App/app.js b/backend/web-bff/App/app.js
index acd489fd..df98daee 100644
--- a/backend/web-bff/App/app.js
+++ b/backend/web-bff/App/app.js
@@ -47,6 +47,8 @@ if (DEVELOPMENT) {
 
     }));
 } else {
+    // When using production mode, please make sure a mongodb instance is running and accepting connections
+    // on port PORT. Also make sure the user exists.
     app.use(session({
         name: 'pigeon session',
         secret: process.env.EXPRESS_SESSION_SECRET,