diff --git a/mod/workshop/assessment.php b/mod/workshop/assessment.php
index ddddfe0c8c6..c8a62557b9c 100644
--- a/mod/workshop/assessment.php
+++ b/mod/workshop/assessment.php
@@ -188,7 +188,10 @@ if (is_null($assessment->grade) and !$assessmenteditable) {
         if (isset($data->weight) and $cansetassessmentweight) {
             $coredata->weight = $data->weight;
         }
-        $DB->update_record('workshop_assessments', $coredata);
+        // Update the assessment data if there is something other than just the 'id'.
+        if (count((array)$coredata) > 1 ) {
+            $DB->update_record('workshop_assessments', $coredata);
+        }
 
         // And finally redirect the user's browser.
         if (!is_null($rawgrade) and isset($data->saveandclose)) {
diff --git a/mod/workshop/exassessment.php b/mod/workshop/exassessment.php
index 6112a41cf27..d0d0f84a6ac 100644
--- a/mod/workshop/exassessment.php
+++ b/mod/workshop/exassessment.php
@@ -126,7 +126,10 @@ if ($mform->is_cancelled()) {
         // Remember the last one who edited the reference assessment.
         $coredata->reviewerid = $USER->id;
     }
-    $DB->update_record('workshop_assessments', $coredata);
+    // Update the assessment data if there is something other than just the 'id'.
+    if (count((array)$coredata) > 1 ) {
+        $DB->update_record('workshop_assessments', $coredata);
+    }
 
     if (!is_null($rawgrade) and isset($data->saveandclose)) {
         if ($canmanage) {