diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp
index c892735..05ade63 100644
--- a/lib/Serialization/ASTReaderDecl.cpp
+++ b/lib/Serialization/ASTReaderDecl.cpp
@@ -908,6 +908,7 @@
   else
     D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
   D->NextFriend = cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
+  D->UnsupportedFriend = (Record[Idx++] != 0);
   D->FriendLoc = ReadSourceLocation(Record, Idx);
 }
 
diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index 0dcc822..bf7c259 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -835,6 +835,7 @@
   else
     Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record);
   Writer.AddDeclRef(D->NextFriend, Record);
+  Record.push_back(D->UnsupportedFriend);
   Writer.AddSourceLocation(D->FriendLoc, Record);
   Code = serialization::DECL_FRIEND;
 }