diff --git a/AST/Expr.cpp b/AST/Expr.cpp
index 0aee702..15fbb24 100644
--- a/AST/Expr.cpp
+++ b/AST/Expr.cpp
@@ -296,6 +296,7 @@
   // the type looks fine, now check the expression
   switch (getStmtClass()) {
   case StringLiteralClass: // C99 6.5.1p4
+    return LV_Valid;
   case ArraySubscriptExprClass: // C99 6.5.3p4 (e1[e2] == (*((e1)+(e2))))
     // For vectors, make sure base is an lvalue (i.e. not a function call).
     if (cast<ArraySubscriptExpr>(this)->getBase()->getType()->isVectorType())