diff --git a/mace/runtimes/apu/v4/neuron_delegate_kernel.cc b/mace/runtimes/apu/v4/neuron_delegate_kernel.cc
index 5003f6e8..27a37747 100644
--- a/mace/runtimes/apu/v4/neuron_delegate_kernel.cc
+++ b/mace/runtimes/apu/v4/neuron_delegate_kernel.cc
@@ -89,7 +89,6 @@ bool NeuronDelegateKernel::Init(const NetDef *net_def,
         &restoredModel, &restoredCompilation, buffer.data(), buffer.size());
     if (err == NEURON_NO_ERROR) {
         LOG(INFO) << "Load pre-compiled model successfully.";
-        nn_model_.reset(restoredModel);
         nn_compilation_.reset(restoredCompilation);
         return true;
     }