diff --git a/renderers/object_renderer.php b/renderers/object_renderer.php
index 0f486d52..e0974192 100644
--- a/renderers/object_renderer.php
+++ b/renderers/object_renderer.php
@@ -774,7 +774,7 @@ protected function resubmit_to_plagiarism_button($coursework, $submission) {
      * @param string $classname
      * @return string
      */
-    protected function make_file_link($files, $file, $classname = 'submissionfile') {
+    protected function make_file_link($files, $file, $classname = 'submissionfile text-break') {
         if (
             $files->get_file_area_name() == 'submission'
             &&