diff --git a/ws.py b/ws.py
index 0903525..f2f8621 100644
--- a/ws.py
+++ b/ws.py
@@ -26,7 +26,13 @@ class WS:
             sys.exit(1)
         else:
             print(f"Run after setup {SERVICE_NAME}: {START_AFTER_CONNECT}")
-        addr = backend.replace("https://", "wss://")
+            
+        addr = backend
+        if not "wss://" in addr:
+            addr = addr.replace("https://", "wss://")
+        if not "/ws/services" in addr:
+            addr += "/ws/services"
+
         print(f"Connect to {addr}, secret len: {len(auth)}")
         self.ws = websocket.WebSocketApp(addr, cookie="secretkey="+auth, on_close=self.on_close, on_open=self.on_open)