diff --git a/onnxsim/onnxsim.cpp b/onnxsim/onnxsim.cpp
index 6cbbf08..6d4638e 100644
--- a/onnxsim/onnxsim.cpp
+++ b/onnxsim/onnxsim.cpp
@@ -417,7 +417,13 @@ onnx::ModelProto _FoldConstant(const onnx::ModelProto& model) {
     model.CopyFrom(tmp);
     const auto [const_nodes, non_const_nodes] = GetConstantNodes(model);
     for (const auto& x : const_nodes) {
-      RunOpAndAddInitializer(model, x);
+      try {
+        RunOpAndAddInitializer(model, x);
+      } catch (const std::exception& e) {
+        std::cerr << "WARNING: failed to run \"" << node.op_type() <<
+          "\" op (name is \"" << node.name << "\"), skip..." << std::endl;
+        non_const_nodes.push_back(x);
+      }
     }
     model.mutable_graph()->clear_node();
     for (const auto& x : non_const_nodes) {