diff --git a/blocks/course_overview/block_course_overview.php b/blocks/course_overview/block_course_overview.php
index a183ee2..8ece30c 100644
--- a/blocks/course_overview/block_course_overview.php
+++ b/blocks/course_overview/block_course_overview.php
@@ -64,7 +64,7 @@ class block_course_overview extends block_base {
             $courses_limit = $courses_limit + 1;
         }
 
-        $courses = enrol_get_my_courses(NULL, 'visible DESC,sortorder ASC', '*', $courses_limit);
+        $courses = enrol_get_my_courses('id, shortname', 'visible DESC,sortorder ASC', $courses_limit);
         $site = get_site();
         $course = $site; //just in case we need the old global $course hack