diff --git a/utils/TableGen/AsmWriterEmitter.cpp b/utils/TableGen/AsmWriterEmitter.cpp
index 18b07595611..3cb36128806 100644
--- a/utils/TableGen/AsmWriterEmitter.cpp
+++ b/utils/TableGen/AsmWriterEmitter.cpp
@@ -45,6 +45,9 @@ namespace llvm {
     /// an operand, specified with syntax like ${opname:modifier}.
     std::string MiModifier;
 
+	// To make VS STL happy
+	AsmWriterOperand():OperandType(isLiteralTextOperand) {}
+
     AsmWriterOperand(const std::string &LitStr)
       : OperandType(isLiteralTextOperand), Str(LitStr) {}