diff --git a/src/judas_server/backend/handler/hello_handler.py b/src/judas_server/backend/handler/hello_handler.py
index c2458a5..747632f 100644
--- a/src/judas_server/backend/handler/hello_handler.py
+++ b/src/judas_server/backend/handler/hello_handler.py
@@ -58,6 +58,7 @@ class HelloHandler(BaseHandler):
             "last_seen": client.last_seen
         }
 
+        del self.backend_server.pending_hello[client]
         self.backend_server._save_known_clients()
         client.status = ClientStatus.ONLINE