diff --git a/core/dbobject.class.php b/core/dbobject.class.php
index 1125ac131..041f136b8 100644
--- a/core/dbobject.class.php
+++ b/core/dbobject.class.php
@@ -2420,7 +2420,10 @@ abstract class DBObject implements iDisplay
 				$oAttDef = MetaModel::GetAttributeDef(get_class($this), $sAttCode);
 				$ret = $oAttDef->GetForTemplate($this->Get($sAttCode), $sVerb, $this);
 			}
-
+			if ($ret === null)
+			{
+				$ret = '';
+			}
 		}
 		return $ret;
 	}