--- src/mucroom.cpp.orig	Thu Apr 20 01:44:19 2017
+++ src/mucroom.cpp	Thu Apr 20 01:45:18 2017
@@ -22,6 +22,8 @@
 #include "error.h"
 #include "util.h"
 #include "tag.h"
+#include <cstdlib>
+using std::atoi;
 
 namespace gloox
 {