diff --git a/lib/Interpreter/CMakeLists.txt b/lib/Interpreter/CMakeLists.txt
index 7d265c6e..dc16fc83 100644
--- a/lib/Interpreter/CMakeLists.txt
+++ b/lib/Interpreter/CMakeLists.txt
@@ -24,6 +24,7 @@ add_cling_library(clingInterpreter
   ASTNodeEraser.cpp
   AutoSynthesizer.cpp
   CIFactory.cpp
+  ClangInternalState.cpp
   DeclCollector.cpp
   DeclExtractor.cpp
   DynamicLookup.cpp