diff --git a/mod/assign/locallib.php b/mod/assign/locallib.php
index 79d9ce5d6db..29eb08d3f1b 100644
--- a/mod/assign/locallib.php
+++ b/mod/assign/locallib.php
@@ -3181,7 +3181,7 @@ class assign {
             } else {
                 $button->set_formats(PORTFOLIO_FORMAT_PLAINHTML);
             }
-            $result .= $button->to_html();
+            $result .= $button->to_html(PORTFOLIO_ADD_TEXT_LINK);
         }
         return $result;
     }