diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index b8da8e8eb56..43c5db7666d 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -2766,7 +2766,9 @@ function remove_course_contents($courseid, $showfeedback=true) {
         'grade_exceptions' => 'courseid',
         'grade_item' => 'courseid',
         'grade_letter' => 'courseid',
-        'grade_preferences' => 'courseid'
+        'grade_preferences' => 'courseid',
+        'backup_courses' => 'courseid', // Delete scheduled backup stuff
+        'backup_log' => 'courseid'
     );
     foreach ($tablestoclear as $table => $col) {
         if (delete_records($table, $col, $course->id)) {