diff --git a/include/class.h b/include/class.h
index af6fa84b..058a0d69 100644
--- a/include/class.h
+++ b/include/class.h
@@ -43,7 +43,7 @@ struct Class
 	int con_freq;
 	int ping_freq;
 	int total;
-	struct _patricia_tree_t *ip_limits;
+	rb_patricia_tree_t *ip_limits;
 	int cidr_bitlen;
 	int cidr_amount;