diff --git a/src/include/client.h b/src/include/client.h
index 2943502..6126ad7 100644
--- a/src/include/client.h
+++ b/src/include/client.h
@@ -2,6 +2,7 @@
 #define CLIENT_H
 
 #include <cassert>
+#include <cstring>
 #include <iostream>
 #include <utility>