diff --git a/lib/Linker/Linker.cpp b/lib/Linker/Linker.cpp
index a07ecc6d71d..ee34cee1d41 100644
--- a/lib/Linker/Linker.cpp
+++ b/lib/Linker/Linker.cpp
@@ -14,6 +14,7 @@
 #include "llvm/Linker.h"
 #include "llvm/Module.h"
 #include "llvm/Bytecode/Reader.h"
+#include "llvm/Config/config.h"
 #include <iostream>
 
 using namespace llvm;