diff --git a/apps/essimporter/main.cpp b/apps/essimporter/main.cpp
index 0e5c65e951..1c7d511160 100644
--- a/apps/essimporter/main.cpp
+++ b/apps/essimporter/main.cpp
@@ -1,3 +1,5 @@
+#include <iostream>
+
 #include <boost/program_options.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/path.hpp>