diff --git a/templates/frontOffice/default/includes/single-product.html b/templates/frontOffice/default/includes/single-product.html
index ff1edc590..600a6962f 100644
--- a/templates/frontOffice/default/includes/single-product.html
+++ b/templates/frontOffice/default/includes/single-product.html
@@ -1,22 +1,24 @@
 <li class="item">
     {assign var="hasSubmit" value = false}
     {assign var="productTitle" value="{$TITLE}"}
-
+    {if not $product_id}
+	{assign var="$product_id" value=$ID}
+    {/if}
     <article itemscope itemtype="http://schema.org/Product">
         <!-- Use the meta tag to specify content that is not visible on the page in any way -->
-        {loop name="brand.feature" type="feature" product=$ID title="brand"}
-        {loop name="brand.value" type="feature_value" feature=$ID product=$product_id}
+        {loop name="brand.feature" type="feature" product=$product_id title="brand"}
+        {loop name="brand.value" type="feature_value" feature=$product_id product=$product_id}
             <meta itemprop="brand" content="{$TITLE}">
         {/loop}
         {/loop}
-        {loop name="brand.feature" type="feature" product=$ID title="isbn"}
+        {loop name="brand.feature" type="feature" product=$product_id title="isbn"}
         {loop name="brand.value" type="feature_value" feature=$ID product=$product_id}
             <meta itemprop="productID" content="isbn:{$TITLE}">
         {/loop}
         {/loop}
 
         <a href="{$URL}" itemprop="url" tabindex="-1" class="product-image">
-            {loop name="product_thumbnail" type="image" product=$ID width="{$width}" height="{$height}" resize_mode="borders" limit="1"}
+            {loop name="product_thumbnail" type="image" product=$product_id width="{$width}" height="{$height}" resize_mode="borders" limit="1"}
                 <img itemprop="image" src="{$IMAGE_URL}" alt="{$productTitle}">
             {/loop}
             {elseloop rel="product_thumbnail"}
@@ -48,8 +50,8 @@
                     online_only : http://schema.org/OnlineOnly
                 -->
                 {if $IS_PROMO }
-                    {loop name="productSaleElements_promo" type="product_sale_elements" product=$ID limit="1" order="min_price"}
-                    {assign var="default_product_sale_elements" value=$ID}
+                    {loop name="productSaleElements_promo" type="product_sale_elements" product=$product_id limit="1" order="min_price"}
+                    {assign var="default_product_sale_elements" value=$product_id}
                         <span class="special-price"><span itemprop="price" class="price-label">{intl l="Special Price:"} </span><span class="price">{format_number number=$TAXED_PROMO_PRICE} {currency attr="symbol"}</span></span>
                         <span class="old-price"><span class="price-label">{intl l="Regular Price:"} </span><span class="price">{format_number number=$TAXED_PRICE} {currency attr="symbol"}</span></span>
                     {/loop}
@@ -63,7 +65,7 @@
             <form id="form-product-details" action="{url path="/cart/add" }" method="post" class="form-product">
                 {form_hidden_fields form=$form}
                 <input type="hidden" name="view" value="product">
-                <input type="hidden" name="product_id" value="{$ID}">
+                <input type="hidden" name="product_id" value="{$product_id}">
 
                 {if $form_error}<div class="alert alert-error">{$form_error_message}</div>{/if}
 
@@ -71,13 +73,13 @@
                 {if $default_product_sale_elements }
                     <input type="hidden" name="{$name}" value="{$default_product_sale_elements}" {$attr}>
                 {else}
-                    {loop name="productSaleElements_promo" type="product_sale_elements" product="{$ID}" limit="1"}
+                    {loop name="productSaleElements_promo" type="product_sale_elements" product="{$product_id}" limit="1"}
                         <input type="hidden" name="{$name}" value="{$ID}" {$attr}>
                     {/loop}
                 {/if}
                 {/form_field}
                 {form_field form=$form field="product"}
-                    <input id="{$label_attr.for}" type="hidden" name="{$name}" value="{$ID}" {$attr} >
+                    <input id="{$label_attr.for}" type="hidden" name="{$name}" value="{$product_id}" {$attr} >
                 {/form_field}
 
                 <fieldset class="product-options hide">
@@ -86,11 +88,11 @@
                             <label for="options" class="option-heading">Options</label>
                             <div class="option-content">
                                 <select name="options" class="form-control">
-                                    {loop name="stock" type="product_sale_elements" product="$ID" order="min_price"}
+                                    {loop name="stock" type="product_sale_elements" product="$product_id" order="min_price"}
                                     {if $LOOP_TOTAL == 1}
                                         {assign var="hasSubmit" value = true}
                                     {/if}
-                                    {loop name="combi" type="attribute_combination" product_sale_elements="$ID" order="alpha"}
+                                    {loop name="combi" type="attribute_combination" product_sale_elements="$product_id" order="alpha"}
                                             <option value="{$ID}" data-quantity="{$QUANTITY}" data-price="{format_number number="{$BEST_TAXED_PRICE}"} {currency attr="symbol"}" data-old-price="{format_number number="{$TAXED_PRICE}"} {currency attr="symbol"}">{$ATTRIBUTE_AVAILABILITY_TITLE}</small></option>
                                         {/loop}
                                     {/loop}
@@ -133,4 +135,4 @@
             {/if}
         </div>
     </article><!-- /product -->
-</li>
\ No newline at end of file
+</li>