diff --git a/src/ngx_http_lua_ssl_certby.c b/src/ngx_http_lua_ssl_certby.c
index 9a2d63fcf0..32e83e51b0 100644
--- a/src/ngx_http_lua_ssl_certby.c
+++ b/src/ngx_http_lua_ssl_certby.c
@@ -201,7 +201,6 @@ ngx_http_lua_ssl_cert_handler(ngx_ssl_conn_t *ssl_conn, void *data)
     ngx_http_lua_srv_conf_t         *lscf;
     ngx_http_core_loc_conf_t        *clcf;
     ngx_http_lua_ssl_ctx_t          *cctx;
-    ngx_http_core_srv_conf_t        *cscf;
 
     c = ngx_ssl_get_connection(ssl_conn);
 
@@ -299,16 +298,6 @@ ngx_http_lua_ssl_cert_handler(ngx_ssl_conn_t *ssl_conn, void *data)
 
     c->log->action = "loading SSL certificate by lua";
 
-    if (lscf->srv.ssl_cert_handler == NULL) {
-        cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
-
-        ngx_log_error(NGX_LOG_ALERT, c->log, 0,
-                      "no ssl_certificate_by_lua* defined in "
-                      "server %V", &cscf->server_name);
-
-        goto failed;
-    }
-
     rc = lscf->srv.ssl_cert_handler(r, lscf, L);
 
     if (rc >= NGX_OK || rc == NGX_ERROR) {
diff --git a/src/ngx_http_lua_ssl_client_helloby.c b/src/ngx_http_lua_ssl_client_helloby.c
index 42a91c1604..cc3ed91c36 100644
--- a/src/ngx_http_lua_ssl_client_helloby.c
+++ b/src/ngx_http_lua_ssl_client_helloby.c
@@ -191,7 +191,6 @@ ngx_http_lua_ssl_client_hello_handler(ngx_ssl_conn_t *ssl_conn,
     ngx_http_lua_srv_conf_t         *lscf;
     ngx_http_core_loc_conf_t        *clcf;
     ngx_http_lua_ssl_ctx_t          *cctx;
-    ngx_http_core_srv_conf_t        *cscf;
 
     c = ngx_ssl_get_connection(ssl_conn);
 
@@ -290,16 +289,6 @@ ngx_http_lua_ssl_client_hello_handler(ngx_ssl_conn_t *ssl_conn,
 
     c->log->action = "loading SSL client hello by lua";
 
-    if (lscf->srv.ssl_client_hello_handler == NULL) {
-        cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
-
-        ngx_log_error(NGX_LOG_ALERT, c->log, 0,
-                      "no ssl_client_hello_by_lua* defined in "
-                      "server %V", &cscf->server_name);
-
-        goto failed;
-    }
-
     rc = lscf->srv.ssl_client_hello_handler(r, lscf, L);
 
     if (rc >= NGX_OK || rc == NGX_ERROR) {