diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index c6ecdea..584abfb 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -2630,6 +2630,7 @@
     PARSE_LANGOPT(AccessControl);
     PARSE_LANGOPT(CharIsSigned);
     PARSE_LANGOPT(ShortWChar);
+    PARSE_LANGOPT(ShortEnums);
     LangOpts.setGCMode((LangOptions::GCMode)Record[Idx++]);
     LangOpts.setVisibilityMode((Visibility)Record[Idx++]);
     LangOpts.setStackProtectorMode((LangOptions::StackProtectorMode)
diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index 54a2648..4fa48fa 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -941,6 +941,9 @@
   Record.push_back(LangOpts.CharIsSigned); // Whether char is a signed or
                                            // unsigned type
   Record.push_back(LangOpts.ShortWChar);  // force wchar_t to be unsigned short
+  Record.push_back(LangOpts.ShortEnums);  // Should the enum type be equivalent
+                                          // to the smallest integer type with
+                                          // enough room.
   Record.push_back(LangOpts.getGCMode());
   Record.push_back(LangOpts.getVisibilityMode());
   Record.push_back(LangOpts.getStackProtectorMode());