diff --git a/htdocs/core/lib/contract.lib.php b/htdocs/core/lib/contract.lib.php
index 3940fd00414..591d5746992 100644
--- a/htdocs/core/lib/contract.lib.php
+++ b/htdocs/core/lib/contract.lib.php
@@ -105,7 +105,7 @@ function contract_admin_prepare_head()
 	// Entries must be declared in modules descriptor with line
 	// $this->tabs = array('entity:+tabname:Title:@mymodule:/mymodule/mypage.php?id=__ID__');   to add new tab
 	// $this->tabs = array('entity:-tabname:Title:@mymodule:/mymodule/mypage.php?id=__ID__');   to remove a tab
-	complete_head_from_modules($conf,$langs,$object,$head,$h,'contract_admin');
+	complete_head_from_modules($conf,$langs,null,$head,$h,'contract_admin');
 
 	$head[$h][0] = DOL_URL_ROOT.'/contrat/admin/contract_extrafields.php';
 	$head[$h][1] = $langs->trans("ExtraFields");
@@ -114,9 +114,9 @@ function contract_admin_prepare_head()
 
 
 
-	complete_head_from_modules($conf,$langs,$object,$head,$h,'contract_admin','remove');
+	complete_head_from_modules($conf,$langs,null,$head,$h,'contract_admin','remove');
 
 		return $head;
 }
 
-?>
\ No newline at end of file
+?>