diff --git a/modules/m_who.c b/modules/m_who.c
index b5357e78..f05beca5 100644
--- a/modules/m_who.c
+++ b/modules/m_who.c
@@ -138,7 +138,7 @@ m_who(struct Client *client_p, struct Client *source_p, int parc, const char *pa
 			fmt.querytype = "0";
 	}
 
-	strlcpy(maskcopy, parv[1], sizeof maskcopy);
+	rb_strlcpy(maskcopy, parv[1], sizeof maskcopy);
 	mask = maskcopy;
 
 	collapse(mask);