diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp
index a68f562..e42a5b4 100644
--- a/lib/Serialization/ASTReaderDecl.cpp
+++ b/lib/Serialization/ASTReaderDecl.cpp
@@ -658,6 +658,7 @@
 
 void ASTDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
   VisitNamedDecl(D);
+  D->IsInline = Record[Idx++];
   D->setLBracLoc(ReadSourceLocation(Record, Idx));
   D->setRBracLoc(ReadSourceLocation(Record, Idx));
   D->setNextNamespace(
diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index f8d584b..07520d8 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -610,6 +610,7 @@
 
 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
   VisitNamedDecl(D);
+  Record.push_back(D->isInline());
   Writer.AddSourceLocation(D->getLBracLoc(), Record);
   Writer.AddSourceLocation(D->getRBracLoc(), Record);
   Writer.AddDeclRef(D->getNextNamespace(), Record);