diff --git a/portainer/config.json b/portainer/config.json
index 00cbdc5dd..21981f1fa 100644
--- a/portainer/config.json
+++ b/portainer/config.json
@@ -43,7 +43,7 @@
     "ssl": "bool",
     "certfile": "str",
     "keyfile": "str",
-    "password": "str",
+    "password": "str?",
     "manual_override": "bool?"
   }
 }