diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index b023bdbc8..e60863788 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -3432,25 +3432,16 @@ ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf)
 {
     ngx_http_core_main_conf_t *cmcf = conf;
 
-    if (cmcf->server_names_hash_max_size == NGX_CONF_UNSET_UINT) {
-        cmcf->server_names_hash_max_size = 512;
-    }
-
-    if (cmcf->server_names_hash_bucket_size == NGX_CONF_UNSET_UINT) {
-        cmcf->server_names_hash_bucket_size = ngx_cacheline_size;
-    }
+    ngx_conf_init_uint_value(cmcf->server_names_hash_max_size, 512);
+    ngx_conf_init_uint_value(cmcf->server_names_hash_bucket_size,
+                             ngx_cacheline_size);
 
     cmcf->server_names_hash_bucket_size =
             ngx_align(cmcf->server_names_hash_bucket_size, ngx_cacheline_size);
 
 
-    if (cmcf->variables_hash_max_size == NGX_CONF_UNSET_UINT) {
-        cmcf->variables_hash_max_size = 512;
-    }
-
-    if (cmcf->variables_hash_bucket_size == NGX_CONF_UNSET_UINT) {
-        cmcf->variables_hash_bucket_size = 64;
-    }
+    ngx_conf_init_uint_value(cmcf->variables_hash_max_size, 512);
+    ngx_conf_init_uint_value(cmcf->variables_hash_bucket_size, 64);
 
     cmcf->variables_hash_bucket_size =
                ngx_align(cmcf->variables_hash_bucket_size, ngx_cacheline_size);