--- a/src/http/v3/ngx_http_v3_tables.c
+++ b/src/http/v3/ngx_http_v3_tables.c
@@ -198,7 +198,7 @@ ngx_http_v3_insert(ngx_connection_t *c, 
         return NGX_HTTP_V3_ERR_ENCODER_STREAM_ERROR;
     }
 
-    h3c = c->qs->parent->data;
+    h3c = c->quic->parent->data;
     dt = &h3c->table;
 
     ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0,
@@ -250,7 +250,7 @@ ngx_http_v3_set_capacity(ngx_connection_
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
                    "http3 set capacity %ui", capacity);
 
-    pc = c->qs->parent;
+    pc = c->quic->parent;
     h3c = pc->data;
     h3scf = ngx_http_get_module_srv_conf(h3c->hc.conf_ctx, ngx_http_v3_module);
 
@@ -324,7 +324,7 @@ ngx_http_v3_evict(ngx_connection_t *c, s
     ngx_http_v3_connection_t     *h3c;
     ngx_http_v3_dynamic_table_t  *dt;
 
-    h3c = c->qs->parent->data;
+    h3c = c->quic->parent->data;
     dt = &h3c->table;
 
     if (need > dt->capacity) {
@@ -367,7 +367,7 @@ ngx_http_v3_duplicate(ngx_connection_t *
 
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 duplicate %ui", index);
 
-    h3c = c->qs->parent->data;
+    h3c = c->quic->parent->data;
     dt = &h3c->table;
 
     if (dt->base + dt->nelts <= index) {
@@ -463,7 +463,7 @@ ngx_http_v3_lookup(ngx_connection_t *c, 
     ngx_http_v3_connection_t     *h3c;
     ngx_http_v3_dynamic_table_t  *dt;
 
-    h3c = c->qs->parent->data;
+    h3c = c->quic->parent->data;
     dt = &h3c->table;
 
     if (index < dt->base || index - dt->base >= dt->nelts) {
@@ -506,7 +506,7 @@ ngx_http_v3_decode_insert_count(ngx_conn
         return NGX_OK;
     }
 
-    h3c = c->qs->parent->data;
+    h3c = c->quic->parent->data;
     dt = &h3c->table;
 
     h3scf = ngx_http_get_module_srv_conf(h3c->hc.conf_ctx, ngx_http_v3_module);
@@ -555,7 +555,7 @@ ngx_http_v3_check_insert_count(ngx_conne
     ngx_http_v3_connection_t     *h3c;
     ngx_http_v3_dynamic_table_t  *dt;
 
-    pc = c->qs->parent;
+    pc = c->quic->parent;
     h3c = pc->data;
     dt = &h3c->table;
 
@@ -636,7 +636,7 @@ ngx_http_v3_new_header(ngx_connection_t 
     ngx_http_v3_block_t       *block;
     ngx_http_v3_connection_t  *h3c;
 
-    h3c = c->qs->parent->data;
+    h3c = c->quic->parent->data;
 
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
                    "http3 new dynamic header, blocked:%ui", h3c->nblocked);