diff --git a/htdocs/core/modules/contract/mod_contract_serpis.php b/htdocs/core/modules/contract/mod_contract_serpis.php
index d819fb06af8..357483e7ae9 100644
--- a/htdocs/core/modules/contract/mod_contract_serpis.php
+++ b/htdocs/core/modules/contract/mod_contract_serpis.php
@@ -64,7 +64,7 @@ class mod_contract_serpis extends ModelNumRefContracts
 	 */
 	function canBeActivated()
 	{
-		global $conf,$langs;
+		global $conf,$langs,$db;
 
 		$coyymm=''; $max='';