diff --git a/lib/AST/CMakeLists.txt b/lib/AST/CMakeLists.txt
index b508144..63ef795 100644
--- a/lib/AST/CMakeLists.txt
+++ b/lib/AST/CMakeLists.txt
@@ -35,8 +35,8 @@
   InheritViz.cpp
   ItaniumCXXABI.cpp
   ItaniumMangle.cpp
-  LambdaMangleContext.cpp
   Mangle.cpp
+  MangleNumberingContext.cpp
   MicrosoftCXXABI.cpp
   MicrosoftMangle.cpp
   NestedNameSpecifier.cpp