diff --git a/ge/ge_local_engine/module.mk b/ge/ge_local_engine/module.mk
index aa761d6e..c7a18721 100755
--- a/ge/ge_local_engine/module.mk
+++ b/ge/ge_local_engine/module.mk
@@ -71,7 +71,7 @@ include ${BUILD_HOST_SHARED_LIBRARY}
 #compiler for libge_local_opskernel_builder.so
 include $(CLEAR_VARS)
 LOCAL_MODULE := libge_local_opskernel_builder
-LOCAL_CFLAGS += -Werror -O2
+LOCAL_CFLAGS += -Werror
 LOCAL_CFLAGS += -std=c++11 -Dgoogle=ascend_private
 LOCAL_LDFLAGS :=
 
@@ -91,7 +91,7 @@ include ${BUILD_HOST_SHARED_LIBRARY}
 #compiler for device libge_local_opskernel_builder.so
 include $(CLEAR_VARS)
 LOCAL_MODULE := libge_local_opskernel_builder
-LOCAL_CFLAGS += -Werror -O2
+LOCAL_CFLAGS += -Werror
 LOCAL_CFLAGS += -std=c++11 -Dgoogle=ascend_private
 LOCAL_LDFLAGS :=
 
diff --git a/ge/host_cpu_engine/module.mk b/ge/host_cpu_engine/module.mk
index 440093b6..861ab19b 100644
--- a/ge/host_cpu_engine/module.mk
+++ b/ge/host_cpu_engine/module.mk
@@ -63,7 +63,7 @@ include ${BUILD_HOST_SHARED_LIBRARY}
 #compiler for host ops kernel builder
 include $(CLEAR_VARS)
 LOCAL_MODULE := libhost_cpu_opskernel_builder
-LOCAL_CFLAGS += -Werror -O2
+LOCAL_CFLAGS += -Werror
 LOCAL_CFLAGS += -std=c++11 -Dgoogle=ascend_private
 LOCAL_LDFLAGS :=
 
@@ -83,7 +83,7 @@ include ${BUILD_HOST_SHARED_LIBRARY}
 #compiler for device ops kernel builder
 include $(CLEAR_VARS)
 LOCAL_MODULE := libhost_cpu_opskernel_builder
-LOCAL_CFLAGS += -Werror -O2
+LOCAL_CFLAGS += -Werror
 LOCAL_CFLAGS += -std=c++11 -Dgoogle=ascend_private
 LOCAL_LDFLAGS :=