--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -2234,21 +2234,17 @@ ngx_ssl_get_client_verify(ngx_connection
     X509  *cert;
 
     if (SSL_get_verify_result(c->ssl->connection) != X509_V_OK) {
-        s->len = sizeof("FAILED") - 1;
-        s->data = (u_char *) "FAILED";
-
+        ngx_str_set(s, "FAILED");
         return NGX_OK;
     }
 
     cert = SSL_get_peer_certificate(c->ssl->connection);
 
     if (cert) {
-        s->len = sizeof("SUCCESS") - 1;
-        s->data = (u_char *) "SUCCESS";
+        ngx_str_set(s, "SUCCESS");
 
     } else {
-        s->len = sizeof("NONE") - 1;
-        s->data = (u_char *) "NONE";
+        ngx_str_set(s, "NONE");
     }
 
     X509_free(cert);