diff --git a/themes/default/contact-form.tpl b/themes/default/contact-form.tpl
index bc6bef2f4..ad1185cd0 100644
--- a/themes/default/contact-form.tpl
+++ b/themes/default/contact-form.tpl
@@ -89,7 +89,7 @@
 						{/foreach}
 					</select>
 				{elseif !isset($customerThread.id_order) && !isset($isLogged)}
-					<input type="text" name="id_order" id="id_order" value="{if isset($customerThread.id_order) && $customerThread.id_order|intval > 0}{$customerThread.id_order|intval}{else}{if isset($smarty.post.id_order) && !empty($smarty.post.id_order|intval)}{$smarty.post.id_order|intval}{/if}{/if}" />
+					<input type="text" name="id_order" id="id_order" value="{if isset($customerThread.id_order) && $customerThread.id_order|intval > 0}{$customerThread.id_order|intval}{else}{if isset($smarty.post.id_order) && !empty($smarty.post.id_order)}{$smarty.post.id_order|intval}{/if}{/if}" />
 				{elseif $customerThread.id_order|intval > 0}
 					<input type="text" name="id_order" id="id_order" value="{$customerThread.id_order|intval}" readonly="readonly" />
 				{/if}