diff --git a/lib/completion/completion_criteria_course.php b/lib/completion/completion_criteria_course.php
index 671eeb97e32..a25dea2ae6b 100644
--- a/lib/completion/completion_criteria_course.php
+++ b/lib/completion/completion_criteria_course.php
@@ -194,7 +194,7 @@ class completion_criteria_course extends completion_criteria {
         $rs = $DB->get_recordset_sql($sql);
         foreach ($rs as $record) {
             $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
-            $completion->mark_complete($record['timecompleted']);
+            $completion->mark_complete($record->timecompleted);
         }
         $rs->close();
     }
diff --git a/lib/completion/completion_criteria_date.php b/lib/completion/completion_criteria_date.php
index 1d52e29806d..baecc20f420 100644
--- a/lib/completion/completion_criteria_date.php
+++ b/lib/completion/completion_criteria_date.php
@@ -180,7 +180,7 @@ class completion_criteria_date extends completion_criteria {
         $rs = $DB->get_recordset_sql($sql, array(time()));
         foreach ($rs as $record) {
             $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
-            $completion->mark_complete($record['timeend']);
+            $completion->mark_complete($record->timeend);
         }
         $rs->close();
     }
diff --git a/lib/completion/completion_criteria_grade.php b/lib/completion/completion_criteria_grade.php
index 22a924f804a..6bc32ed7236 100644
--- a/lib/completion/completion_criteria_grade.php
+++ b/lib/completion/completion_criteria_grade.php
@@ -216,7 +216,7 @@ class completion_criteria_grade extends completion_criteria {
         $rs = $DB->get_recordset_sql($sql);
         foreach ($rs as $record) {
             $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
-            $completion->mark_complete($record['timecompleted']);
+            $completion->mark_complete($record->timecompleted);
         }
         $rs->close();
     }