diff --git a/include/chat/common.h b/include/chat/common.h
index b6387bc..95cabd0 100644
--- a/include/chat/common.h
+++ b/include/chat/common.h
@@ -4,6 +4,7 @@
 //INCLUDES
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <why2/flags.h>