diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index e52d4ce..1575a40 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -6861,8 +6861,12 @@
   Record.push_back(C->getTotalComponentListNum());
   Record.push_back(C->getTotalComponentsNum());
   Record.AddSourceLocation(C->getLParenLoc());
+  Record.AddNestedNameSpecifierLoc(C->getMapperQualifierLoc());
+  Record.AddDeclarationNameInfo(C->getMapperIdInfo());
   for (auto *E : C->varlists())
     Record.AddStmt(E);
+  for (auto *E : C->mapperlists())
+    Record.AddStmt(E);
   for (auto *D : C->all_decls())
     Record.AddDeclRef(D);
   for (auto N : C->all_num_lists())