diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index 3769ce35d45..87efc71e332 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -547,7 +547,7 @@ class Propal extends CommonObject
                 if (! empty($fk_parent_line)) $this->line_order(true,'DESC');
 
                 // Mise a jour informations denormalisees au niveau de la propale meme
-                $result=$this->update_price(1,'auto');	// This method is designed to add line from user input so total calculation must be done using 'auto' mode.
+                $result=$this->update_price(1,'auto',0,$mysoc);	// This method is designed to add line from user input so total calculation must be done using 'auto' mode.
                 if ($result > 0)
                 {
                     $this->db->commit();
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index d35564f4d7f..c138ec07f09 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -2154,9 +2154,9 @@ abstract class CommonObject
      *  Must be called at end of methods addline or updateline.
      *
      *	@param	int		$exclspec          	>0 = Exclude special product (product_type=9)
-     *  @param  string	$roundingadjust    	'none'=Do nothing, 'auto'=Use default method (MAIN_ROUNDOFTOTAL_NOT_TOTALOFROUND if defined, or '0'), '0'=Force use total of rounding, '1'=Force use rounding of total
+     *  @param  string	$roundingadjust    	'none'=Do nothing, 'auto'=Use default method (MAIN_ROUNDOFTOTAL_NOT_TOTALOFROUND if defined, or '0'), '0'=Force mode total of rounding, '1'=Force mode rounding of total
      *  @param	int		$nodatabaseupdate	1=Do not update database. Update only properties of object.
-     *  @param	Societe	$seller				If roundingadjust is '0' or '1', it means we recalculate total for lines before calculating total for object and for this, we need seller object.
+     *  @param	Societe	$seller				If roundingadjust is '0' or '1' or maybe 'auto', it means we recalculate total for lines before calculating total for object and for this, we need seller object.
      *	@return	int    			           	<0 if KO, >0 if OK
      */
     function update_price($exclspec=0,$roundingadjust='none',$nodatabaseupdate=0,$seller=null)