diff --git a/application/controllers/admin/tokens.php b/application/controllers/admin/tokens.php
index 232383a1506..36cd63e85e2 100644
--- a/application/controllers/admin/tokens.php
+++ b/application/controllers/admin/tokens.php
@@ -1096,7 +1096,7 @@ public function updatetokenattributes($iSurveyId)
                 $i++;
             }
             $tokenattributefieldnames[] = 'attribute_'.$i;
-            Yii::app()->db->createCommand(Yii::app()->db->getSchema()->addColumn("{{tokens_".intval($iSurveyId)."}}", 'attribute_'.$i, 'string(255)'))->execute();
+            Yii::app()->db->createCommand(Yii::app()->db->getSchema()->addColumn("{{tokens_".intval($iSurveyId)."}}", 'attribute_'.$i, 'text'))->execute();
         }
 
         Yii::app()->db->schema->getTable($oSurvey->tokensTableName, true); // Refresh schema cache just in case the table existed in the past