diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index 6c63a14..d8b5b91 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -253,6 +253,7 @@
       !D->isModulePrivate() &&
       !CXXRecordDecl::classofKind(D->getKind()) &&
       !D->getIntegerTypeSourceInfo() &&
+      !D->getMemberSpecializationInfo() &&
       D->getDeclName().getNameKind() == DeclarationName::Identifier)
     AbbrevToUse = Writer.getDeclEnumAbbrev();
 
diff --git a/test/PCH/cxx-templates.h b/test/PCH/cxx-templates.h
index 3dda059..00631dd 100644
--- a/test/PCH/cxx-templates.h
+++ b/test/PCH/cxx-templates.h
@@ -246,3 +246,16 @@
   }
 };
 }
+
+namespace PR13020 {
+template<typename T>
+void f() {
+ enum E {
+   enumerator
+ };
+
+ T t = enumerator;
+}
+
+template void f<int>();
+}