diff --git a/classes/report_table.php b/classes/report_table.php
index 5fcd71c..f3eddd5 100644
--- a/classes/report_table.php
+++ b/classes/report_table.php
@@ -67,13 +67,11 @@ class report_table extends \table_sql {
 
         $columns = array(
             'fullname',
-            'timecreated',
-            'code'
+            'timecreated'
         );
         $headers = array(
             get_string('fullname'),
-            get_string('receiveddate', 'customcert'),
-            get_string('code', 'customcert')
+            get_string('receiveddate', 'customcert')
         );
 
         // Check if we were passed a filename, which means we want to download it.
@@ -95,7 +93,6 @@ class report_table extends \table_sql {
         $this->define_headers($headers);
         $this->collapsible(false);
         $this->sortable(true);
-        $this->no_sorting('code');
         $this->no_sorting('download');
         $this->is_downloadable(true);
 
@@ -130,16 +127,6 @@ class report_table extends \table_sql {
         return userdate($user->timecreated);
     }
 
-    /**
-     * Generate the code column.
-     *
-     * @param \stdClass $user
-     * @return string
-     */
-    public function col_code($user) {
-        return $user->code;
-    }
-
     /**
      * Generate the download column.
      *