diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index bdc4fa9be51..09038866e45 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -258,7 +258,7 @@ class Product extends CommonObject
 
     //! Unites de mesure
     public $capacity;
-    public $capacity_units;    
+    public $capacity_units;
     public $weight;
     public $weight_units;
     public $length;
@@ -957,7 +957,7 @@ class Product extends CommonObject
             $sql.= ", tobatch = " . ((empty($this->status_batch) || $this->status_batch < 0) ? '0' : (int) $this->status_batch);
             $sql.= ", finished = " . ((! isset($this->finished) || $this->finished < 0) ? "null" : (int) $this->finished);
             $sql.= ", capacity = " . ($this->capacity!='' ? "'".$this->db->escape($this->capacity)."'" : 'null');
-            $sql.= ", capacity_units = " . ($this->capacity_units!='' ? "'".$this->db->escape($this->capacity_units)."'": 'null');            
+            $sql.= ", capacity_units = " . ($this->capacity_units!='' ? "'".$this->db->escape($this->capacity_units)."'": 'null');        
             $sql.= ", weight = " . ($this->weight!='' ? "'".$this->db->escape($this->weight)."'" : 'null');
             $sql.= ", weight_units = " . ($this->weight_units!='' ? "'".$this->db->escape($this->weight_units)."'": 'null');
             $sql.= ", length = " . ($this->length!='' ? "'".$this->db->escape($this->length)."'" : 'null');