diff --git a/course/format/weeks/format.php b/course/format/weeks/format.php
index 5f864253067..b351d88d5cd 100644
--- a/course/format/weeks/format.php
+++ b/course/format/weeks/format.php
@@ -144,6 +144,7 @@
             $thissection->course = $course->id;   // Create a new week structure
             $thissection->section = $section;
             $thissection->summary = '';
+            $thissection->summaryformat = FORMAT_HTML;
             $thissection->visible = 1;
             $thissection->id = $DB->insert_record('course_sections', $thissection);
         }