diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 08bc3b4c85e..bf2f1a7f2d6 100755
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1720,11 +1720,11 @@ class Form
 			else if ($objp->stock <= 0) $opt.= ' class="product_line_stock_too_low"';
         }
         $opt.= '>';
-        $opt.= $objp->ref.' - '.dol_trunc($label,32).' - ';
+        $opt.= $objp->ref.' - '.dol_trunc($label, 99, '', '', 1).' - ';
 
         $objRef = $objp->ref;
         if (! empty($filterkey) && $filterkey != '') $objRef=preg_replace('/('.preg_quote($filterkey).')/i','<strong>$1</strong>',$objRef,1);
-        $outval.=$objRef.' - '.dol_trunc($label,32).' - ';
+        $outval.=$objRef.' - '.dol_trunc($label, 99, '', '', 1).' - ';
 
         $found=0;
 
@@ -2004,8 +2004,8 @@ class Form
                 $outval.=$objRef;
                 if (! empty($objp->idprodfournprice)) $outval.=' ('.$objRefFourn.')';
                 $outval.=' - ';
-                $opt.=dol_trunc($objp->label,18).' - ';
-                $outval.=dol_trunc($label,18).' - ';
+                $opt.=dol_trunc($label, 72).' - ';
+                $outval.=dol_trunc($label, 72).' - ';
 
                 if (! empty($objp->idprodfournprice))
                 {
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index fb587487aae..4c3ee24522a 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -1782,14 +1782,16 @@ function dol_print_graph($htmlid,$width,$height,$data,$showlegend=0,$type='pie',
  *	@param	string	$trunc				Where to trunc: right, left, middle (size must be a 2 power), wrap
  * 	@param	string	$stringencoding		Tell what is source string encoding
  *  @param	int		$nodot				Truncation do not add ... after truncation. So it's an exact truncation.
+ *  @param  int     $display            Trunc is use to display and can be changed for small screen
  *	@return string						Truncated string
  */
-function dol_trunc($string,$size=40,$trunc='right',$stringencoding='UTF-8',$nodot=0)
+function dol_trunc($string,$size=40,$trunc='right',$stringencoding='UTF-8',$nodot=0, $display=0)
 {
 	global $conf;
 
 	if ($size==0 || ! empty($conf->global->MAIN_DISABLE_TRUNC)) return $string;
-
+	// reduce for small screen
+    if ($conf->dol_optimize_smallscreen==1 && $display==1) $size = round($size/3);
 	// We go always here
 	if ($trunc == 'right')
 	{