diff --git a/src/http/modules/ngx_http_ssi_filter_module.c b/src/http/modules/ngx_http_ssi_filter_module.c
index 97b58fa0a..24b30a8fa 100644
--- a/src/http/modules/ngx_http_ssi_filter_module.c
+++ b/src/http/modules/ngx_http_ssi_filter_module.c
@@ -360,6 +360,7 @@ ngx_http_ssi_header_filter(ngx_http_request_t *r)
     if (r == r->main) {
         ngx_http_clear_content_length(r);
         ngx_http_clear_last_modified(r);
+        ngx_http_clear_accept_ranges(r);
     }
 
     return ngx_http_next_header_filter(r);