--- a/src/core/ngx_thread_pool.c
+++ b/src/core/ngx_thread_pool.c
@@ -587,7 +587,8 @@
     ngx_thread_pool_conf_t   *tcf;
 
     if (ngx_process != NGX_PROCESS_WORKER
-        && ngx_process != NGX_PROCESS_SINGLE)
+        && ngx_process != NGX_PROCESS_SINGLE
+        && !ngx_is_privileged_agent)
     {
         return NGX_OK;
     }
