diff --git a/src/mail/ngx_mail_smtp_handler.c b/src/mail/ngx_mail_smtp_handler.c
index 8158c4fa1..2eaf0e20d 100644
--- a/src/mail/ngx_mail_smtp_handler.c
+++ b/src/mail/ngx_mail_smtp_handler.c
@@ -348,8 +348,8 @@ ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c)
     }
 
     if (sscf->greeting_delay) {
-         c->read->handler = ngx_mail_smtp_invalid_pipelining;
-         return;
+        c->read->handler = ngx_mail_smtp_invalid_pipelining;
+        return;
     }
 
     c->read->handler = ngx_mail_smtp_init_protocol;