diff --git a/clang/include/clang/Lex/ModuleMap.h b/clang/include/clang/Lex/ModuleMap.h
index 9ab33abfef970a51d857de1921462ea474e7cdad..8a704db2cda2fd27e0757d1adb69bd0d721458b1 100644
--- a/clang/include/clang/Lex/ModuleMap.h
+++ b/clang/include/clang/Lex/ModuleMap.h
@@ -18,6 +18,7 @@
 
 #include "clang/Basic/LangOptions.h"
 #include "clang/Basic/Module.h"
+#include "clang/Basic/SourceLocation.h"
 #include "clang/Basic/SourceManager.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/IntrusiveRefCntPtr.h"
@@ -27,7 +28,7 @@
 #include <string>
 
 namespace clang {
-  
+
 class DirectoryEntry;
 class FileEntry;
 class FileManager;