diff --git a/lib/completion/completion_criteria_activity.php b/lib/completion/completion_criteria_activity.php
index 23184361b92..3fe8e12fb90 100644
--- a/lib/completion/completion_criteria_activity.php
+++ b/lib/completion/completion_criteria_activity.php
@@ -229,7 +229,7 @@ class completion_criteria_activity extends completion_criteria {
         // Loop through completions, and mark as complete
         $rs = $DB->get_recordset_sql($sql);
         foreach ($rs as $record) {
-            $completion = new completion_criteria_completion($record, DATA_OBJECT_FETCH_BY_KEY);
+            $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
             $completion->mark_complete($record->timecompleted);
         }
         $rs->close();
diff --git a/lib/completion/completion_criteria_course.php b/lib/completion/completion_criteria_course.php
index aa818d898ed..2de83e2da0f 100644
--- a/lib/completion/completion_criteria_course.php
+++ b/lib/completion/completion_criteria_course.php
@@ -189,7 +189,7 @@ class completion_criteria_course extends completion_criteria {
         // Loop through completions, and mark as complete
         $rs = $DB->get_recordset_sql($sql);
         foreach ($rs as $record) {
-            $completion = new completion_criteria_completion($record, DATA_OBJECT_FETCH_BY_KEY);
+            $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
             $completion->mark_complete($record['timecompleted']);
         }
         $rs->close();
diff --git a/lib/completion/completion_criteria_date.php b/lib/completion/completion_criteria_date.php
index 607cb8b0bed..b976f48fee9 100644
--- a/lib/completion/completion_criteria_date.php
+++ b/lib/completion/completion_criteria_date.php
@@ -179,7 +179,7 @@ class completion_criteria_date extends completion_criteria {
         // Loop through completions, and mark as complete
         $rs = $DB->get_recordset_sql($sql, array(time()));
         foreach ($rs as $record) {
-            $completion = new completion_criteria_completion($record, DATA_OBJECT_FETCH_BY_KEY);
+            $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
             $completion->mark_complete($record['timeend']);
         }
         $rs->close();
diff --git a/lib/completion/completion_criteria_duration.php b/lib/completion/completion_criteria_duration.php
index 1f404c48d71..f6f7fe4c5e1 100644
--- a/lib/completion/completion_criteria_duration.php
+++ b/lib/completion/completion_criteria_duration.php
@@ -225,7 +225,7 @@ class completion_criteria_duration extends completion_criteria {
         $now = time();
         $rs = $DB->get_recordset_sql($sql, array($now, $now));
         foreach ($rs as $record) {
-            $completion = new completion_criteria_completion($record, DATA_OBJECT_FETCH_BY_KEY);
+            $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
 
             // Use time start if not 0, otherwise use timeenrolled
             if ($record->otimestart) {
diff --git a/lib/completion/completion_criteria_grade.php b/lib/completion/completion_criteria_grade.php
index 86b2e0b7e84..ad95a9e7802 100644
--- a/lib/completion/completion_criteria_grade.php
+++ b/lib/completion/completion_criteria_grade.php
@@ -215,7 +215,7 @@ class completion_criteria_grade extends completion_criteria {
         // Loop through completions, and mark as complete
         $rs = $DB->get_recordset_sql($sql);
         foreach ($rs as $record) {
-            $completion = new completion_criteria_completion($record, DATA_OBJECT_FETCH_BY_KEY);
+            $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
             $completion->mark_complete($record['timecompleted']);
         }
         $rs->close();