diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 5a5e1a58928..a4fc828ef4b 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -5492,7 +5492,6 @@ abstract class CommonObject
 			}
 
 			$sql .= ")";
-
 			$resql = $this->db->query($sql);
 			if (!$resql)
 			{
@@ -5746,6 +5745,11 @@ abstract class CommonObject
 						$this->array_options["options_".$key] = $this->db->idate($this->array_options["options_".$key]);
 					}
 					break;
+				case 'boolean':
+					if (empty($this->array_options["options_".$key])) {
+						$this->array_options["options_".$key] = null;
+					}
+					break;
 				/*
 				case 'link':
 					$param_list = array_keys($attributeParam['options']);