diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index ecd05c245d7d..dc8a904921d4 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1215,9 +1215,9 @@ Metadata *BitcodeReaderMetadataList::upgradeTypeRefArray(Metadata *MaybeTuple) {
 
   // Create and return a placeholder to use for now.  Eventually
   // resolveTypeRefArrays() will be resolve this forward reference.
-  OldTypeRefs.Arrays.emplace_back(
-      std::piecewise_construct, std::make_tuple(Tuple),
-      std::make_tuple(MDTuple::getTemporary(Context, None)));
+  OldTypeRefs.Arrays.emplace_back();
+  OldTypeRefs.Arrays.back().first.reset(Tuple);
+  OldTypeRefs.Arrays.back().second = MDTuple::getTemporary(Context, None);
   return OldTypeRefs.Arrays.back().second.get();
 }