diff --git a/fastdeploy/engine/common_engine.py b/fastdeploy/engine/common_engine.py
index bbf7b4a6a..0e8b1ec7b 100644
--- a/fastdeploy/engine/common_engine.py
+++ b/fastdeploy/engine/common_engine.py
@@ -933,7 +933,7 @@ class EngineService:
 
         while self.running:
             try:
-                if self.engine_worker_queue.exist_tasks() > 0:
+                if self.engine_worker_queue.exist_tasks():
                     time.sleep(0.001)
                     continue
                 if self.cfg.scheduler_config.splitwise_role != "mixed":