diff --git a/htdocs/telephonie/script/graph-statistiques-ca.php b/htdocs/telephonie/script/graph-statistiques-ca.php
index 2d5bc430c6e..2217bdb5598 100644
--- a/htdocs/telephonie/script/graph-statistiques-ca.php
+++ b/htdocs/telephonie/script/graph-statistiques-ca.php
@@ -74,7 +74,7 @@ $sql .= " WHERE graph IN ('factures.facture_moyenne','factures.ca_mensuel','fact
 $resql = $db->query($sql);
 
 
-$sql = "SELECT date_format(tf.date,'%Y%m'), sum(tf.cout_vente), sum(tf.cout_achat), sum(tf.gain), count(tf.cout_vente)";
+$sql = "SELECT date_format(tf.date,'%m%Y'), sum(tf.cout_vente), sum(tf.cout_achat), sum(tf.gain), count(tf.cout_vente)";
 
 $sql .= " FROM ".MAIN_DB_PREFIX."telephonie_facture as tf";
 $sql .= " GROUP BY date_format(tf.date,'%Y%m') ASC ";