diff --git a/lib/Frontend/PCHReaderDecl.cpp b/lib/Frontend/PCHReaderDecl.cpp
index 7bcd296..059aa25 100644
--- a/lib/Frontend/PCHReaderDecl.cpp
+++ b/lib/Frontend/PCHReaderDecl.cpp
@@ -478,6 +478,7 @@
     SIMPLE_ATTR(CFOwnershipRelease);
     SIMPLE_ATTR(CFOwnershipRetain);
     SIMPLE_ATTR(CFOwnershipReturns);
+    SIMPLE_ATTR(NSOwnershipAutorelease);
     SIMPLE_ATTR(NSOwnershipRelease);
     SIMPLE_ATTR(NSOwnershipRetain);
     SIMPLE_ATTR(NSOwnershipReturns);