diff --git a/fastdeploy/engine/common_engine.py b/fastdeploy/engine/common_engine.py
index dff44216a..ef39ba34c 100644
--- a/fastdeploy/engine/common_engine.py
+++ b/fastdeploy/engine/common_engine.py
@@ -191,16 +191,6 @@ class EngineService:
             create=True,
         )
 
-        exist_task_signal_data = np.zeros([1], dtype=np.int32)
-        self.exist_task_signal = IPCSignal(
-            name="exist_task_signal",
-            array=exist_task_signal_data,
-            dtype=np.int32,
-            suffix=current_suffix,
-            create=True,
-        )
-
-
         exist_task_signal_data = np.zeros([1], dtype=np.int32)
         self.exist_task_signal = IPCSignal(
             name="exist_task_signal",