diff --git a/modules/blockcart/blockcart.php b/modules/blockcart/blockcart.php
index 24b0a8851..07a00a5ed 100644
--- a/modules/blockcart/blockcart.php
+++ b/modules/blockcart/blockcart.php
@@ -108,7 +108,7 @@ class BlockCart extends Module
 		$output = '<h2>'.$this->displayName.'</h2>';
 		if (Tools::isSubmit('submitBlockCart'))
 		{
-			$ajax = Tools::getValue('ajax');
+			$ajax = Tools::getValue('cart_ajax');
 			if ($ajax != 0 AND $ajax != 1)
 				$output .= '<div class="alert error">'.$this->l('Ajax : Invalid choice.').'</div>';
 			else
@@ -129,9 +129,9 @@ class BlockCart extends Module
 
 				<label>'.$this->l('Ajax cart').'</label>
 				<div class="margin-form">
-					<input type="radio" name="ajax" id="ajax_on" value="1" '.(Tools::getValue('ajax', Configuration::get('PS_BLOCK_CART_AJAX')) ? 'checked="checked" ' : '').'/>
+					<input type="radio" name="cart_ajax" id="ajax_on" value="1" '.(Tools::getValue('cart_ajax', Configuration::get('PS_BLOCK_CART_AJAX')) ? 'checked="checked" ' : '').'/>
 					<label class="t" for="ajax_on"> <img src="../img/admin/enabled.gif" alt="'.$this->l('Enabled').'" title="'.$this->l('Enabled').'" /></label>
-					<input type="radio" name="ajax" id="ajax_off" value="0" '.(!Tools::getValue('ajax', Configuration::get('PS_BLOCK_CART_AJAX')) ? 'checked="checked" ' : '').'/>
+					<input type="radio" name="cart_ajax" id="ajax_off" value="0" '.(!Tools::getValue('cart_ajax', Configuration::get('PS_BLOCK_CART_AJAX')) ? 'checked="checked" ' : '').'/>
 					<label class="t" for="ajax_off"> <img src="../img/admin/disabled.gif" alt="'.$this->l('Disabled').'" title="'.$this->l('Disabled').'" /></label>
 					<p class="clear">'.$this->l('Activate AJAX mode for cart (compatible with the default theme)').'</p>
 				</div>