FORMERR DNS response may be equal to mininal query size
diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index a7fe056..f887dca 100644
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -960,7 +960,7 @@
     ngx_resolver_qs_t     *qs;
     ngx_resolver_query_t  *query;
 
-    if ((size_t) n < sizeof(ngx_resolver_query_t) + 1) {
+    if ((size_t) n < sizeof(ngx_resolver_query_t)) {
         goto short_response;
     }