diff --git a/htdocs/telephonie/stats/lignes/actives.class.php b/htdocs/telephonie/stats/lignes/actives.class.php
index 5644457728a..00eea5b38cf 100644
--- a/htdocs/telephonie/stats/lignes/actives.class.php
+++ b/htdocs/telephonie/stats/lignes/actives.class.php
@@ -90,8 +90,14 @@ class GraphLignesActives extends GraphLine {
 	print $this->db->error() . ' ' . $sql;
       }
     
-               
-    $this->LabelInterval = round($num / 20,0);
+    $this->LabelInterval = 1;
+
+    $a = round($num / 20,0);
+
+    if ($a > 1)
+      {
+	$this->LabelInterval = $a;
+      }
 
     $this->GraphDraw($this->file, $active, $labels);