diff --git a/lite/api/cxx_api.cc b/lite/api/cxx_api.cc
index 3fcaaac65be82e062cb554a596fb82b531b258ba..d3e1e56c4d8048dcfb88180ca872d0f790cca84a 100644
--- a/lite/api/cxx_api.cc
+++ b/lite/api/cxx_api.cc
@@ -318,7 +318,7 @@ const lite::Tensor *Predictor::GetTensor(const std::string &name) const {
   return &var->Get<lite::Tensor>();
 }
 
-lite::Tensor *Predictor::GetMutableTensor(const std::string &name) const {
+lite::Tensor *Predictor::GetMutableTensor(const std::string &name) {
   auto *var = exec_scope_->FindVar(name);
   CHECK(var) << "no variable named with " << name << " in exec_scope";
   return var->GetMutable<lite::Tensor>();