diff --git a/components/mdns/mdns.c b/components/mdns/mdns.c
index 49574dfbd..903cc02b4 100644
--- a/components/mdns/mdns.c
+++ b/components/mdns/mdns.c
@@ -4298,6 +4298,7 @@ void mdns_parse_packet(mdns_rx_packet_t *packet)
         } else {
             free(out_sync_browse);
         }
+        out_sync_browse = NULL;
     }
 
 clear_rx_packet: