--- libircclient-1.6.orig/include/libircclient.h
+++ libircclient-1.6/include/libircclient.h
@@ -130,6 +130,7 @@
 #define IN_INCLUDE_LIBIRC_H
 #include "libirc_errors.h"
 #include "libirc_events.h"
+#include "libirc_rfcnumeric.h"
 #include "libirc_options.h"
 #undef IN_INCLUDE_LIBIRC_H