diff --git a/lib/Lex/HeaderSearch.cpp b/lib/Lex/HeaderSearch.cpp
index 931145a..837b913 100644
--- a/lib/Lex/HeaderSearch.cpp
+++ b/lib/Lex/HeaderSearch.cpp
@@ -36,8 +36,9 @@
 
 ExternalHeaderFileInfoSource::~ExternalHeaderFileInfoSource() {}
 
-HeaderSearch::HeaderSearch(FileManager &FM)
-    : FileMgr(FM), FrameworkMap(64) {
+HeaderSearch::HeaderSearch(FileManager &FM, DiagnosticsEngine &Diags)
+  : FileMgr(FM), Diags(Diags), FrameworkMap(64) 
+{
   AngledDirIdx = 0;
   SystemDirIdx = 0;
   NoCurDirSearch = false;