diff --git a/lib/SPIRV/SPIRVWriter.h b/lib/SPIRV/SPIRVWriter.h
index 28074ea2..244d8dc4 100644
--- a/lib/SPIRV/SPIRVWriter.h
+++ b/lib/SPIRV/SPIRVWriter.h
@@ -72,6 +72,10 @@ namespace SPIRV {
 class LLVMToSPIRVBase : protected BuiltinCallHelper {
 public:
   LLVMToSPIRVBase(SPIRVModule *SMod);
+  LLVMToSPIRVBase(const LLVMToSPIRVBase &Other) = delete;
+  LLVMToSPIRVBase &operator=(const LLVMToSPIRVBase &Other) = delete;
+  LLVMToSPIRVBase(LLVMToSPIRVBase &&Other) = delete;
+  LLVMToSPIRVBase &operator=(LLVMToSPIRVBase &&Other) = delete;
   bool runLLVMToSPIRV(Module &Mod);
 
   // This enum sets the mode used to translate the value which is