diff --git a/clang/lib/Basic/Version.cpp b/clang/lib/Basic/Version.cpp
index 2eac2893a4de..10b93645877d 100644
--- a/clang/lib/Basic/Version.cpp
+++ b/clang/lib/Basic/Version.cpp
@@ -14,6 +14,7 @@
 #include "clang/Basic/Version.h"
 #include "clang/Basic/LLVM.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/Config/config.h"
 #include <cstring>
 #include <cstdlib>