diff --git a/components/mdns/mdns.c b/components/mdns/mdns.c
index 18617cc2f9..c341482a03 100644
--- a/components/mdns/mdns.c
+++ b/components/mdns/mdns.c
@@ -4739,7 +4739,7 @@ static void _mdns_search_result_add_txt(mdns_search_once_t *search, mdns_txt_ite
         free((char *)(txt[i].value));
     }
     free(txt);
-    free(r->txt_value_len);
+    free(txt_value_len);
 }
 
 /**
@@ -7437,7 +7437,7 @@ static void _mdns_browse_result_add_txt(mdns_browse_t *browse, const char *insta
         free((char *)(txt[i].value));
     }
     free(txt);
-    free(r->txt_value_len);
+    free(txt_value_len);
     return;
 }