diff --git a/htdocs/core/modules/project/pdf/doc_generic_project_odt.modules.php b/htdocs/core/modules/project/pdf/doc_generic_project_odt.modules.php
index 501bfc153b0..68cf3de470c 100644
--- a/htdocs/core/modules/project/pdf/doc_generic_project_odt.modules.php
+++ b/htdocs/core/modules/project/pdf/doc_generic_project_odt.modules.php
@@ -529,7 +529,6 @@ class doc_generic_project_odt extends ModelePDFProjects
 						else	// Text
 						{
 							$odfHandler->setVars($key, $value, true, 'UTF-8');
-							$odfHandler->setVarsHeadFooter($key, $value, true, 'UTF-8');
 						}
 					}
 					catch(OdfException $e)
@@ -1037,4 +1036,4 @@ class doc_generic_project_odt extends ModelePDFProjects
 	}
 
 }
-?>
\ No newline at end of file
+?>
diff --git a/htdocs/includes/odtphp/odf.php b/htdocs/includes/odtphp/odf.php
index 94c69705442..d2cb8e0b6e1 100644
--- a/htdocs/includes/odtphp/odf.php
+++ b/htdocs/includes/odtphp/odf.php
@@ -128,33 +128,6 @@ class Odf
 		return $this;
 	}
 
-	/**
-	 * Assing a template variable
-	 *
-	 * @param string $key name of the variable within the template
-	 * @param string $value replacement value
-	 * @param bool $encode if true, special XML characters are encoded
-	 * @throws OdfException
-	 * @return odf
-	 */
-	public function setVarsHeadFooter($key, $value, $encode = true, $charset = 'ISO-8859')
-	{
-		$tag = $this->config['DELIMITER_LEFT'] . $key . $this->config['DELIMITER_RIGHT'];
-		// TODO Warning string may be:
-		// <text:span text:style-name="T13">{</text:span><text:span text:style-name="T12">aaa</text:span><text:span text:style-name="T13">}</text:span>
-		// instead of {aaa} so we should enhance this function.
-		//print $key.'-'.$value.'-'.strpos($this->contentXml, $this->config['DELIMITER_LEFT'] . $key . $this->config['DELIMITER_RIGHT']).'<br>';
-		if (strpos($this->stylesXml, $tag) === false && strpos($this->stylesXml , $tag) === false) {
-			//if (strpos($this->contentXml, '">'. $key . '</text;span>') === false) {
-			throw new OdfException("var $key not found in the document");
-			//}
-		}
-		$value = $encode ? htmlspecialchars($value) : $value;
-		$value = ($charset == 'ISO-8859') ? utf8_encode($value) : $value;
-		$this->vars[$tag] = str_replace("\n", "<text:line-break/>", $value);
-		return $this;
-	}
-
 	/**
 	 * Evaluating php codes inside the ODT and output the buffer (print, echo) inplace of the code
 	 *
diff --git a/htdocs/product/fiche.php b/htdocs/product/fiche.php
index 2933bac2dbc..9193b8e103e 100644
--- a/htdocs/product/fiche.php
+++ b/htdocs/product/fiche.php
@@ -698,7 +698,7 @@ else
         $tmpcode='';
 		if (! empty($modCodeProduct->code_auto))
 			$tmpcode=$modCodeProduct->getNextValue($object,$type);
-        print '<td class="fieldrequired" width="20%">'.$langs->trans("Ref").'</td><td><input name="ref" size="40" maxlength="32" value="'.dol_escape_htmltag(GETPOST('ref')?GETPOST('ref'):$tmpcode).'">';
+        print '<td class="fieldrequired" width="20%">'.$langs->trans("Ref").'</td><td><input name="ref" size="40" maxlength="128" value="'.dol_escape_htmltag(GETPOST('ref')?GETPOST('ref'):$tmpcode).'">';
         if ($_error)
         {
             print $langs->trans("RefAlreadyExists");
@@ -881,7 +881,7 @@ else
             print '<table class="border allwidth">';
 
             // Ref
-            print '<tr><td width="15%" class="fieldrequired">'.$langs->trans("Ref").'</td><td colspan="2"><input name="ref" size="40" maxlength="32" value="'.$object->ref.'"></td></tr>';
+            print '<tr><td width="15%" class="fieldrequired">'.$langs->trans("Ref").'</td><td colspan="2"><input name="ref" size="40" maxlength="128" value="'.$object->ref.'"></td></tr>';
 
             // Label
             print '<tr><td class="fieldrequired">'.$langs->trans("Label").'</td><td colspan="2"><input name="libelle" size="40" maxlength="255" value="'.$object->libelle.'"></td></tr>';