diff --git a/functions/functions_contrats.php b/functions/functions_contrats.php
index f0057ba..930b620 100644
--- a/functions/functions_contrats.php
+++ b/functions/functions_contrats.php
@@ -154,7 +154,11 @@ function getContratLastPanier($id) {
 
 // ADD / UPDATE DATAS
 
-function getContratDatasFromRequest() { return getRequestTableDatas(CONTRATS_TABLE_STRUCT); }
+function getContratDatasFromRequest() { 
+    $datas = getRequestTableDatas(CONTRATS_TABLE_STRUCT);
+    if(isset($datas['frequence']) && $datas['frequence']=="hebdo") $datas['quinz_groupe'] = NULL;
+    return $datas;
+}
 
 function addContrat($datas) {
     return addDatasInTable(