diff --git a/src/cli/debug.cpp b/src/cli/debug.cpp
index ba4d8261..0739ab01 100644
--- a/src/cli/debug.cpp
+++ b/src/cli/debug.cpp
@@ -21,6 +21,7 @@
 #include "cli/debug.hpp"
 
 #include <ctime>
+#include <iostream>
 
 #include <boost/foreach.hpp>