diff --git a/include/llvm/ExecutionEngine/Orc/RPCUtils.h b/include/llvm/ExecutionEngine/Orc/RPCUtils.h
index f680b9cd66f..ba1467ea26d 100644
--- a/include/llvm/ExecutionEngine/Orc/RPCUtils.h
+++ b/include/llvm/ExecutionEngine/Orc/RPCUtils.h
@@ -549,6 +549,9 @@ private:
   public:
     SequenceNumberManager() = default;
 
+    SequenceNumberManager(const SequenceNumberManager&) = delete;
+    SequenceNumberManager& operator=(const SequenceNumberManager&) = delete;
+
     SequenceNumberManager(SequenceNumberManager &&Other)
         : NextSequenceNumber(std::move(Other.NextSequenceNumber)),
           FreeSequenceNumbers(std::move(Other.FreeSequenceNumbers)) {}