diff --git a/lib/outputrenderers.php b/lib/outputrenderers.php
index d332136ec69..524066b101c 100644
--- a/lib/outputrenderers.php
+++ b/lib/outputrenderers.php
@@ -1107,7 +1107,7 @@ class core_renderer extends renderer_base {
         $options = array('class'=>'iconhelp', 'alt'=>$text);
         $url = new moodle_url(get_docs_url($path));
 
-        $icon = $this->icon('docs', $options);
+        $icon = $this->image('docs', $options);
 
         $link = new html_link($url, $icon.$text);