diff --git a/index.php b/index.php
index 33a58d6..2d3b90b 100644
--- a/index.php
+++ b/index.php
@@ -55,7 +55,8 @@
 
 $usesections = course_format_uses_sections($course->format);
 if ($usesections) {
-    $sections = get_all_sections($course->id);
+    $modinfo = get_fast_modinfo($course->id);
+    $sections = $modinfo->get_section_info_all();
 }
 
 $table = new html_table();