diff --git a/SeedDMS_Core/Core/inc.ClassAttribute.php b/SeedDMS_Core/Core/inc.ClassAttribute.php
index a5e8bb0e3..d93e92add 100644
--- a/SeedDMS_Core/Core/inc.ClassAttribute.php
+++ b/SeedDMS_Core/Core/inc.ClassAttribute.php
@@ -692,10 +692,10 @@ class SeedDMS_Core_AttributeDefinition { /* {{{ */
 		if(strlen($this->_valueset) > 1) {
 			return $this->_valueset[0];
 		} elseif($this->_multiple) {
-			if($this->_type == SeedDMS_Core_AttributeDefinition::type_user || $this->_type == SeedDMS_Core_AttributeDefinition::type_group)
-				return ',';
-			else
+			if($this->_type == SeedDMS_Core_AttributeDefinition::type_boolean)
 				return '';
+			else
+				return ',';
 		} else {
 			return '';
 		}