diff --git a/include/tvm/runtime/disco/cuda_ipc_memory.h b/include/tvm/runtime/disco/cuda_ipc_memory.h
index e1cc74ddfe13..a6bfbd866b06 100644
--- a/include/tvm/runtime/disco/cuda_ipc_memory.h
+++ b/include/tvm/runtime/disco/cuda_ipc_memory.h
@@ -69,6 +69,8 @@ class CUDAIPCMemoryObj : public Object {
   std::vector<void*> barrier_out;
   /*! \brief The integer buffer flag for all-reduce. */
   int barrier_flag;
+
+  static constexpr const bool _type_mutable = true;
   TVM_FFI_DECLARE_OBJECT_INFO("tvm.runtime.disco.cuda_ipc_memory", CUDAIPCMemoryObj, Object);
 };
 
diff --git a/include/tvm/runtime/disco/session.h b/include/tvm/runtime/disco/session.h
index 471c4567afca..283d75740c4f 100644
--- a/include/tvm/runtime/disco/session.h
+++ b/include/tvm/runtime/disco/session.h
@@ -151,6 +151,7 @@ class DRefObj : public Object {
 
   static constexpr const uint32_t _type_index = TypeIndex::kRuntimeDiscoDRef;
   static const constexpr bool _type_final = true;
+  static constexpr const bool _type_mutable = true;
   TVM_FFI_DECLARE_OBJECT_INFO_STATIC("runtime.disco.DRef", DRefObj, Object);
 
   /*! \brief The id of the register */