diff --git a/tools/clang/lib/Basic/FileManager.cpp b/tools/clang/lib/Basic/FileManager.cpp
index 50050d0..3f79493 100644
--- a/tools/clang/lib/Basic/FileManager.cpp
+++ b/tools/clang/lib/Basic/FileManager.cpp
@@ -386,6 +386,7 @@ FileManager::getVirtualFile(StringRef Filename, off_t Size,
   UFE->ModTime = ModificationTime;
   UFE->Dir     = DirInfo;
   UFE->UID     = NextFileUID++;
+  UFE->IsValid = true;
   UFE->File.reset();
   return UFE;
 }