diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index 99f6154..cc49ee4 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -347,8 +347,7 @@
   std::string astName(ast_filename);
   std::string ErrMsg;
   
-  return ASTUnit::LoadFromPCHFile(astName, CXXIdx->getDiagnostics(),
-                                  CXXIdx->getFileManager(), &ErrMsg,
+  return ASTUnit::LoadFromPCHFile(astName, &ErrMsg,
                                   CXXIdx->getOnlyLocalDecls(),
                                   /* UseBumpAllocator = */ true);
 }