diff --git a/core/lib/Thelia/Core/Template/Smarty/Plugins/TheliaLoop.php b/core/lib/Thelia/Core/Template/Smarty/Plugins/TheliaLoop.php
index 1810ad117..6d455d49d 100755
--- a/core/lib/Thelia/Core/Template/Smarty/Plugins/TheliaLoop.php
+++ b/core/lib/Thelia/Core/Template/Smarty/Plugins/TheliaLoop.php
@@ -237,7 +237,15 @@ class TheliaLoop implements SmartyPluginInterface {
                 continue;
             }
 
-            /* check default */
+            /* check type */
+            if($value !== null && !$argument->type->isValid($value)) {
+                $faultActor[] = $argument->name;
+                $faultDetails[] = sprintf('Invalid value for "%s" argument', $argument->name);
+                continue;
+            }
+
+            /* set default */
+            /* did it as last checking for we consider default value is acceptable no matter type or empty restriction */
             if($value === null) {
                 $value = $argument->default;
             }
diff --git a/core/lib/Thelia/Type/TypeCollection.php b/core/lib/Thelia/Type/TypeCollection.php
index 621197776..ebbd3274b 100755
--- a/core/lib/Thelia/Type/TypeCollection.php
+++ b/core/lib/Thelia/Type/TypeCollection.php
@@ -65,7 +65,7 @@ class TypeCollection implements \Iterator
      * (PHP 5 &gt;= 5.0.0)<br/>
      * Return the current element
      * @link http://php.net/manual/en/iterator.current.php
-     * @return \Thelia\Core\Template\Element\LoopResultRow
+     * @return \Thelia\Type\TypeInterface
      */
     public function current()
     {
@@ -116,4 +116,25 @@ class TypeCollection implements \Iterator
     {
         $this->position = 0;
     }
+
+    /**
+     * @param $value
+     *
+     * @return bool
+     */
+    public function isValid($value)
+    {
+        $this->rewind();
+        while ($this->valid()) {
+            $type = $this->current();
+
+            if($type->isValid($value)) {
+                return true;
+            }
+
+            $this->next();
+        }
+
+        return false;
+    }
 }
diff --git a/templates/smarty-sample/index.html b/templates/smarty-sample/index.html
index f93dd3876..7bba1e5da 100755
--- a/templates/smarty-sample/index.html
+++ b/templates/smarty-sample/index.html
@@ -1,80 +1,5 @@
-{include file="includes/header.html"}
-<div>
-An image from asset directory :
-{images file='assets/img/logo-thelia-34px.png'}<img src="{$asset_url}" alt="{intl l='Thelia, solution e-commerce libre'}" />{/images}
-</div>
-
-<div>
-{intl l='An internationalized string'}
-</div>
-
-<div>
-	jQuery data: <span id="jquery_block"></span>
-</div>
-
-<div>
-     <p>Category loop example</p>
-     <ul>
-     {loop type="category" name="catloop1"}
-         <li>{$__COUNT__}/{$__TOTAL__} : {$ID} {$TITLE}, children: {$NB_CHILD}
-          {ifloop rel="inner1"}
-          	<ul>
-          	{loop type="category" name="inner1" parent="{$ID}"}
-          		<li>Sub cat {$ID} (parent is {$PARENT}): {$TITLE}</li>
-          	{/loop}
-          	</ul>
-          {/ifloop}
-         </li>
-     {/loop}
-     </ul>
-</div>
-
-<div>
-	<p>Conditional example #1</p>
-
-  	{ifloop rel="catloop2"}
-  		Hey ! Loop catloop2 is not empty:
-  		<ul>
-   		{loop type="category" name="catloop2" parent="12"}
-       		<li>{$__COUNT__}/{$__TOTAL__} : {$ID} {$TITLE}</li>
-   		{/loop}
-   		</ul>
-  	{/ifloop}
-
-  	{elseloop rel="catloop2"}
-  		<p>Loop catloop2 is empty</p>
-  	{/elseloop}
-</div>
-
-<div>
-	<p>Conditional example #2</p>
-
-	{ifloop rel="catloop3"}
-		Loop catloop3 is not empty:
-		<ul>
-		{loop type="category" name="catloop3" parent="0"}
-	    	<li>{$__COUNT__}/{$__TOTAL__} : {$ID} {$TITLE}</li>
-	 	{/loop}
-	 	</ul>
-	{/ifloop}
-
-	{elseloop rel="catloop3"}
-		<p>Loop catloop3 is empty</p>
-	{/elseloop}
-
-	{elseloop rel="catloop2"}
-		<p>... but catloop2 is still empty :-)</p>
-	{/elseloop}
-	{ifloop rel="catloop1"}
-		<p>... and catloop1 is still NOT empty :-)</p>
-	{/ifloop}
-</div>
-
-<div>
-	<p>Traditional for loop</p>
-    {for $index=5 to 12 step 1}
-    	Compteur = {$index}<br />
-    {/for}
-</div>
-
-{include file="includes/footer.html"}
\ No newline at end of file
+<ul>
+{loop type="category" name="catloop1" id="1,3"}
+    <li>{$TITLE}</li>
+{/loop}
+</ul>
\ No newline at end of file