diff --git a/mace/core/net.cc b/mace/core/net.cc
index 93922891629108a74f3652e890e514ed4155e44a..40312f3d66fdd4b989cc9f3c5d7b42f7b8bb86bf 100644
--- a/mace/core/net.cc
+++ b/mace/core/net.cc
@@ -18,7 +18,7 @@ NetBase::NetBase(const std::shared_ptr<const NetDef> &net_def,
 SimpleNet::SimpleNet(const std::shared_ptr<const NetDef> &net_def,
                      Workspace *ws,
                      DeviceType type,
-                     const OpMode mode)
+                     const NetMode mode)
     : NetBase(net_def, ws, type), device_type_(type){
   VLOG(1) << "Constructing SimpleNet " << net_def->name();
   for (int idx = 0; idx < net_def->op_size(); ++idx) {
@@ -93,7 +93,7 @@ bool SimpleNet::Run(RunMetadata *run_metadata) {
 unique_ptr<NetBase> CreateNet(const NetDef &net_def,
                               Workspace *ws,
                               DeviceType type,
-                              const OpMode mode) {
+                              const NetMode mode) {
   std::shared_ptr<NetDef> tmp_net_def(new NetDef(net_def));
   return CreateNet(tmp_net_def, ws, type, mode);
 }
@@ -101,7 +101,7 @@ unique_ptr<NetBase> CreateNet(const NetDef &net_def,
 unique_ptr<NetBase> CreateNet(const std::shared_ptr<const NetDef> &net_def,
                               Workspace *ws,
                               DeviceType type,
-                              const OpMode mode) {
+                              const NetMode mode) {
   unique_ptr<NetBase> net(new SimpleNet(net_def, ws, type, mode));
   return net;
 }
diff --git a/mace/core/net.h b/mace/core/net.h
index 73aad694ef4149aad97f4d1f943e43ecf33d66e3..67c954f3e59c9bc1f8c8c46a6ce23858f94c1675 100644
--- a/mace/core/net.h
+++ b/mace/core/net.h
@@ -35,7 +35,7 @@ class SimpleNet : public NetBase {
   SimpleNet(const std::shared_ptr<const NetDef> &net_def,
             Workspace *ws,
             DeviceType type,
-            const OpMode mode = OpMode::NORMAL);
+            const NetMode mode = NetMode::NORMAL);
 
   bool Run(RunMetadata *run_metadata = nullptr) override;
 
@@ -49,11 +49,11 @@ class SimpleNet : public NetBase {
 unique_ptr<NetBase> CreateNet(const NetDef &net_def,
                               Workspace *ws,
                               DeviceType type,
-                              const OpMode mode = OpMode::NORMAL);
+                              const NetMode mode = NetMode::NORMAL);
 unique_ptr<NetBase> CreateNet(const std::shared_ptr<const NetDef> &net_def,
                               Workspace *ws,
                               DeviceType type,
-                              const OpMode mode = OpMode::NORMAL);
+                              const NetMode mode = NetMode::NORMAL);
 
 }  //  namespace mace
 
diff --git a/mace/core/operator.cc b/mace/core/operator.cc
index b29efc59a484abe7f75d2ee7dac009156483c47a..2026105439b96b27bc90bb2b867f7914a66e31dc 100644
--- a/mace/core/operator.cc
+++ b/mace/core/operator.cc
@@ -50,15 +50,15 @@ MACE_REGISTER_DEVICE_TYPE(DeviceType::OPENCL, OPENCLOperatorRegistry);
 unique_ptr<OperatorBase> CreateOperator(const OperatorDef &operator_def,
                                         Workspace *ws,
                                         DeviceType type,
-                                        const OpMode mode) {
+                                        const NetMode mode) {
   OperatorRegistry *registry = gDeviceTypeRegistry()->at(type);
   const int dtype = ArgumentHelper::GetSingleArgument<OperatorDef, int>(operator_def,
                                                                         "T",
                                                                         static_cast<int>(DT_FLOAT));
   const int op_mode_i= ArgumentHelper::GetSingleArgument<OperatorDef, int>(operator_def,
                                                                         "mode",
-                                                                        static_cast<int>(OpMode::NORMAL));
-  const OpMode op_mode = static_cast<OpMode>(op_mode_i);
+                                                                        static_cast<int>(NetMode::NORMAL));
+  const NetMode op_mode = static_cast<NetMode>(op_mode_i);
   if (op_mode == mode) {
     return registry->Create(OpKeyBuilder(operator_def.type().data())
                                 .TypeConstraint("T", static_cast<DataType>(dtype))
diff --git a/mace/core/operator.h b/mace/core/operator.h
index 11754f65dcb54876c4cce27155c5244bdb1c5da3..137a2e1a002be96673adb6cbbf5e30df13a09b01 100644
--- a/mace/core/operator.h
+++ b/mace/core/operator.h
@@ -196,7 +196,7 @@ MACE_DECLARE_REGISTRY(OPENCLOperatorRegistry,
 unique_ptr<OperatorBase> CreateOperator(const OperatorDef &operator_def,
                                         Workspace *ws,
                                         DeviceType type,
-                                        const OpMode mode);
+                                        const NetMode mode);
 
 }  //  namespace mace
 
diff --git a/mace/examples/mace_run.cc b/mace/examples/mace_run.cc
index 61dd160d14519d59510865971c190ba6ffd2160a..21eade9c8deba8ddd441b193e990e68793ac8f7a 100644
--- a/mace/examples/mace_run.cc
+++ b/mace/examples/mace_run.cc
@@ -101,7 +101,7 @@ int main(int argc, char **argv) {
   }
 
   // Init model
-  auto net = CreateNet(net_def, &ws, device_type, OpMode::INIT);
+  auto net = CreateNet(net_def, &ws, device_type, NetMode::INIT);
   net->Run();
 
   // run model
diff --git a/mace/ops/core_test.cc b/mace/ops/core_test.cc
index 27efc095fa02df6e54ce073f598f41cf9761500f..8761d04fba494c3d39cdd196dfd05c01c692f687 100644
--- a/mace/ops/core_test.cc
+++ b/mace/ops/core_test.cc
@@ -17,7 +17,7 @@ TEST(CoreTest, INIT_MODE) {
       .Input("Input")
       .Output("B2IOutput")
       .AddIntArg("buffer_type", kernels::BufferType::FILTER)
-      .AddIntArg("mode", static_cast<int>(OpMode::INIT))
+      .AddIntArg("mode", static_cast<int>(NetMode::INIT))
       .Finalize(&op_defs[op_defs.size()-1]);
 
   Tensor *input =
@@ -40,7 +40,7 @@ TEST(CoreTest, INIT_MODE) {
   for (auto &op_def : op_defs) {
     net_def.add_op()->CopyFrom(op_def);
   }
-  auto net = CreateNet(net_def, &ws, DeviceType::OPENCL, OpMode::INIT);
+  auto net = CreateNet(net_def, &ws, DeviceType::OPENCL, NetMode::INIT);
   net->Run();
 
   EXPECT_TRUE(ws.GetTensor("B2IOutput") != nullptr);
diff --git a/mace/proto/mace.proto b/mace/proto/mace.proto
index ab6be22b90cc563472dd3924ddc637a8909a3f2a..37a349433e75cc277186da49a5942ed4d78503bf 100644
--- a/mace/proto/mace.proto
+++ b/mace/proto/mace.proto
@@ -2,7 +2,7 @@ syntax = "proto2";
 
 package mace;
 
-enum OpMode {
+enum NetMode {
   INIT   = 0;
   NORMAL = 1;
 }