diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index 0d9a54e..9aca5cd 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -2598,7 +2598,10 @@
   ExprResult ValueExpr(ParseAssignmentExpression());
   if (T.consumeClose())
     return ExprError();
-  
+
+  if (ValueExpr.isInvalid())
+    return ExprError();
+
   // Wrap the sub-expression in a parenthesized expression, to distinguish
   // a boxed expression from a literal.
   SourceLocation LPLoc = T.getOpenLocation(), RPLoc = T.getCloseLocation();