diff --git a/src/Ui/UiServer.py b/src/Ui/UiServer.py
index 61943ada1..b38d9d03e 100644
--- a/src/Ui/UiServer.py
+++ b/src/Ui/UiServer.py
@@ -192,7 +192,9 @@ def stop(self):
             from Debug import DebugReloader
             DebugReloader.watcher.stop()
 
-        self.server.socket.close()
+        for socket in self.server.sockets:
+            socket.stop()
+
         self.server.stop()
         self.running = False
         time.sleep(1)