diff --git a/include/chat/common.h b/include/chat/common.h
index 9ea12cd..93c36c1 100644
--- a/include/chat/common.h
+++ b/include/chat/common.h
@@ -8,6 +8,7 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <why2/flags.h>
+#include <why2/misc.h>
 #include <why2/memory.h>
 
 //DEFINES