diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 0844627..a5cc27b 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2337,6 +2337,7 @@
         ngx_log_error(NGX_LOG_WARN, r->connection->log, 0,
                       "upstream sent more data than specified in "
                       "\"Content-Length\" header");
+        u->keepalive = 0;
         return NGX_OK;
     }