diff --git a/src/Ui/UiServer.py b/src/Ui/UiServer.py
index 5592596d..632936fc 100644
--- a/src/Ui/UiServer.py
+++ b/src/Ui/UiServer.py
@@ -59,6 +59,7 @@ class UiServer:
         if self.ip == "*":
             self.ip = ""  # Bind all
         self.wrapper_nonces = []
+        self.site_manager = SiteManager.site_manager
         self.sites = SiteManager.site_manager.list()
         self.log = logging.getLogger(__name__)