diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index bb7042d..283132a 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -6086,6 +6086,7 @@
   case Expr::PseudoObjectExprClass:
   case Expr::AtomicExprClass:
   case Expr::InitListExprClass:
+  case Expr::LambdaExprClass:
     return ICEDiag(2, E->getLocStart());
 
   case Expr::SizeOfPackExprClass: