diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 93ae06aab..60d4f6193 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -1232,6 +1232,8 @@ ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
             break;
         }
 
+        flush = 0;
+
         buf->pos = buf->start;
         buf->last = buf->start;