--- a/libevocosm/roulette.cpp
+++ b/libevocosm/roulette.cpp
@@ -35,6 +35,8 @@
 // Standard C++ Library
 #include <stdexcept>
 
+#include <cstring>
+
 // libcoyotl
 #include "libcoyotl/validator.h"
 using namespace libcoyotl;