diff --git a/enzyme/tools/enzyme-tblgen/blasDiffUseUpdater.h b/enzyme/tools/enzyme-tblgen/blasDiffUseUpdater.h
index 2e28e8c76c6d..93ceeb4e75a3 100644
--- a/enzyme/tools/enzyme-tblgen/blasDiffUseUpdater.h
+++ b/enzyme/tools/enzyme-tblgen/blasDiffUseUpdater.h
@@ -83,7 +83,7 @@ void emit_BLASDiffUse(TGPattern &pattern, llvm::raw_ostream &os) {
 
   if (hasDiffeRetVal) {
     size_t ptrRetArg = typeMap.size();
-    Twine retarg = "CI->getArgOperand(" + Twine(ptrRetArg) + " + offset)";
+    auto retarg = "CI->getArgOperand(" + std::to_string(ptrRetArg) + " + offset)";
     os << "  if (cublas) {\n";
     os << "    if (!gutils->isConstantValue(" << retarg << "))\n";
     os << "      if ((shadow || EnzymeRuntimeActivityCheck) && val == "