diff --git a/lib/Transforms/LevelRaise.cpp b/lib/Transforms/LevelRaise.cpp
index afc2ad5d7a6..25ba40e5b88 100644
--- a/lib/Transforms/LevelRaise.cpp
+++ b/lib/Transforms/LevelRaise.cpp
@@ -18,6 +18,7 @@
 #include "Support/STLExtras.h"
 #include "Support/StatisticReporter.h"
 #include <algorithm>
+#include <iostream>
 using std::cerr;
 
 static Statistic<> NumLoadStorePeepholes("raise\t\t- Number of load/store peepholes");