diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index 091ac80..7f0d3ad 100644
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -2396,7 +2396,6 @@
 {
     char                 *err;
     size_t                len;
-    u_char                text[NGX_SOCKADDR_STRLEN];
     in_addr_t             addr;
     int32_t               ttl;
     ngx_int_t             octet;
@@ -2413,13 +2412,15 @@
     struct in6_addr       addr6;
 #endif
 
-    if (ngx_resolver_copy(r, NULL, buf,
+    if (ngx_resolver_copy(r, &name, buf,
                           buf + sizeof(ngx_resolver_hdr_t), buf + n)
         != NGX_OK)
     {
         return;
     }
 
+    ngx_log_debug1(NGX_LOG_DEBUG_CORE, r->log, 0, "resolver qs:%V", &name);
+
     /* AF_INET */
 
     addr = 0;
@@ -2447,10 +2448,6 @@
         tree = &r->addr_rbtree;
         expire_queue = &r->addr_expire_queue;
 
-        addr = htonl(addr);
-        name.len = ngx_inet_ntop(AF_INET, &addr, text, NGX_SOCKADDR_STRLEN);
-        name.data = text;
-
         goto valid;
     }
 
@@ -2495,9 +2492,6 @@
         tree = &r->addr6_rbtree;
         expire_queue = &r->addr6_expire_queue;
 
-        name.len = ngx_inet6_ntop(addr6.s6_addr, text, NGX_SOCKADDR_STRLEN);
-        name.data = text;
-
         goto valid;
     }
 
@@ -2506,6 +2500,7 @@
 
     ngx_log_error(r->log_level, r->log, 0,
                   "invalid in-addr.arpa or ip6.arpa name in DNS response");
+    ngx_resolver_free(r, name.data);
     return;
 
 valid:
@@ -2513,6 +2508,7 @@
     if (rn == NULL || rn->query == NULL) {
         ngx_log_error(r->log_level, r->log, 0,
                       "unexpected response for %V", &name);
+        ngx_resolver_free(r, name.data);
         goto failed;
     }
 
@@ -2522,9 +2518,12 @@
         ngx_log_error(r->log_level, r->log, 0,
                       "wrong ident %ui response for %V, expect %ui",
                       ident, &name, qident);
+        ngx_resolver_free(r, name.data);
         goto failed;
     }
 
+    ngx_resolver_free(r, name.data);
+
     if (code == 0 && nan == 0) {
         code = NGX_RESOLVE_NXDOMAIN;
     }