diff --git a/server_addon/deadline/server/settings/main.py b/server_addon/deadline/server/settings/main.py
index 83c7567c0d..21a314cd2f 100644
--- a/server_addon/deadline/server/settings/main.py
+++ b/server_addon/deadline/server/settings/main.py
@@ -22,7 +22,7 @@ class ServerListSubmodel(BaseSettingsModel):
 
 
 async def defined_deadline_ws_name_enum_resolver(
-    addon: BaseServerAddon,
+    addon: "BaseServerAddon",
     settings_variant: str = "production",
     project_name: str | None = None,
 ) -> list[str]: