diff --git a/views/bootstrap/class.Bootstrap.php b/views/bootstrap/class.Bootstrap.php
index 814bbc988..6f8382f26 100644
--- a/views/bootstrap/class.Bootstrap.php
+++ b/views/bootstrap/class.Bootstrap.php
@@ -1205,7 +1205,7 @@ $(document).ready(function() {
 	function printAttributeEditField($attrdef, $attribute, $fieldname='attributes', $norequire=false) { /* {{{ */
 		switch($attrdef->getType()) {
 		case SeedDMS_Core_AttributeDefinition::type_boolean:
-			echo "<input type=\"hidden\" name=\"".$fieldname."[".$attrdef->getId()."]\" value=\"0\" />";
+			echo "<input type=\"hidden\" name=\"".$fieldname."[".$attrdef->getId()."]\" value=\"\" />";
 			echo "<input type=\"checkbox\" id=\"".$fieldname."_".$attrdef->getId()."\" name=\"".$fieldname."[".$attrdef->getId()."]\" value=\"1\" ".(($attribute && $attribute->getValue()) ? 'checked' : '')." />";
 			break;
 		case SeedDMS_Core_AttributeDefinition::type_date: