diff --git a/paddle/function/GemmConvOp.cpp b/paddle/function/GemmConvOp.cpp
index 3387cae396..de7b70e271 100644
--- a/paddle/function/GemmConvOp.cpp
+++ b/paddle/function/GemmConvOp.cpp
@@ -128,7 +128,7 @@ public:
     }
 #ifdef PADDLE_MOBILE_INFERENCE
     if (Device == DEVICE_TYPE_CPU) {
-      delete memory_;
+      memory_.reset();
     }
 #endif
   }