diff --git a/tools/bugpoint/ExtractFunction.cpp b/tools/bugpoint/ExtractFunction.cpp
index b2e427c..31982e1 100644
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -29,6 +29,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/FileUtilities.h"
+#include "llvm/Support/raw_ostream.h"
 #include "llvm/System/Path.h"
 #include "llvm/System/Signals.h"
 #include <set>