diff --git a/src/include/lwip/apps/mdns_priv.h b/src/include/lwip/apps/mdns_priv.h
index 5b06b8a3..5d857672 100644
--- a/src/include/lwip/apps/mdns_priv.h
+++ b/src/include/lwip/apps/mdns_priv.h
@@ -238,6 +238,9 @@ struct udp_pcb* get_mdns_pcb(void);
 
 char checker(int);
 char checkSizeOfInt[sizeof(struct mdns_service)]={checker(&checkSizeOfInt)};
+/*char checkSizeOfInt[sizeof(struct mdns_service_old)]={checker(&checkSizeOfInt)}; */
+char checkSizeOfInt[sizeof(struct mdns_domain)]={checker(&checkSizeOfInt)};
+char checkSizeOfInt[sizeof(struct mdns_txtdata)]={checker(&checkSizeOfInt)};
 
 #ifdef __cplusplus
 }