diff --git a/lib/VMCore/AutoUpgrade.cpp b/lib/VMCore/AutoUpgrade.cpp
index 1529d1bf1f7..0afb5b9951c 100644
--- a/lib/VMCore/AutoUpgrade.cpp
+++ b/lib/VMCore/AutoUpgrade.cpp
@@ -193,7 +193,7 @@ Function *llvm::UpgradeIntrinsicFunction(Function* F) {
   // See if its one of the name's we're interested in.
   if (Function *R = getUpgradedIntrinsic(F)) {
     if (R->getName() != F->getName())
-      std::cerr << "WARNING: change " << F->getName() << " to "
+      std::cout << "WARNING: change " << F->getName() << " to "
                 << R->getName() << "\n";
     return R;
   }