1 files changed, 3 insertions, 3 deletions
diff --git a/include/clang/Lex/HeaderMap.h b/include/clang/Lex/HeaderMap.h
index e333840b6a9db..08bc5b64bc129 100644
--- a/include/clang/Lex/HeaderMap.h
+++ b/include/clang/Lex/HeaderMap.h
@@ -14,10 +14,10 @@
 #ifndef LLVM_CLANG_LEX_HEADERMAP_H
 #define LLVM_CLANG_LEX_HEADERMAP_H
 
+#include "clang/Basic/LLVM.h"
+
 namespace llvm {
   class MemoryBuffer;
-  class StringRef;
-  template <typename T> class SmallVectorImpl;
 }
 namespace clang {
   class FileEntry;
@@ -52,7 +52,7 @@ public:
   /// raw path at which the file was found in the file system. For example,
   /// for a search path ".." and a filename "../file.h" this would be
   /// "../../file.h".
-  const FileEntry *LookupFile(llvm::StringRef Filename, FileManager &FM) const;
+  const FileEntry *LookupFile(StringRef Filename, FileManager &FM) const;
 
   /// getFileName - Return the filename of the headermap.
   const char *getFileName() const;