diff --git a/ext/python-docker-client/dockerclient.py b/ext/python-docker-client/dockerclient.py
index 7c6082d..1ad4b52 100644
--- a/ext/python-docker-client/dockerclient.py
+++ b/ext/python-docker-client/dockerclient.py
@@ -113,14 +113,16 @@ if __name__ == "__main__":
 
     while try_count:
         try_count -= 1
+        if try_count == 0:
+            print("Exit cannot get backend")
+            sys.exit(1)
+
         loop.run_until_complete(c.request_srvs())
         if c.servers.__len__() == 0:
             print("Backend not respond, or server list not setup! Try again after 5 seconds...")
             loop.run_until_complete(asyncio.sleep(5))
-
-    if try_count == 0:
-        print("Exit cannot get backend")
-        sys.exit(1)
+        else:
+            break
 
     print(f"Found {c.servers.__len__()} servers!")