diff --git a/src/http/modules/ngx_http_range_filter_module.c b/src/http/modules/ngx_http_range_filter_module.c
index 8ffca82e6..7ad9db9dd 100644
--- a/src/http/modules/ngx_http_range_filter_module.c
+++ b/src/http/modules/ngx_http_range_filter_module.c
@@ -382,6 +382,9 @@ ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx,
             if (ranges-- == 0) {
                 return NGX_DECLINED;
             }
+
+        } else if (start == 0) {
+            return NGX_DECLINED;
         }
 
         if (*p++ != ',') {