diff --git a/controllers/admin/AdminManufacturersController.php b/controllers/admin/AdminManufacturersController.php
index b8f778334..60a220f00 100644
--- a/controllers/admin/AdminManufacturersController.php
+++ b/controllers/admin/AdminManufacturersController.php
@@ -156,7 +156,7 @@ class AdminManufacturersControllerCore extends AdminController
 			),
 			'lastname' => array(
 				'title' => $this->l('Last name'),
-				'filter_key' => 'a!name'
+				'filter_key' => 'a!lastname'
 			),
 			'postcode' => array(
 				'title' => $this->l('Zip Code/Postal Code'),
diff --git a/controllers/admin/AdminTrackingController.php b/controllers/admin/AdminTrackingController.php
index 0f65c76ee..ac2384930 100644
--- a/controllers/admin/AdminTrackingController.php
+++ b/controllers/admin/AdminTrackingController.php
@@ -269,10 +269,10 @@ class AdminTrackingControllerCore extends AdminController
 	
 	protected function clearFilters()
 	{
-		if (Tools::isSubmit('submitResetcategory'))
+		if (Tools::isSubmit('submitResetempty_categories'))
 			$this->processResetFilters('empty_categories');
 
-		if (Tools::isSubmit('submitResetproduct'))
+		if (Tools::isSubmit('submitResetno_stock_products_attributes'))
 			$this->processResetFilters('no_stock_products_attributes');
 
 		if (Tools::isSubmit('submitResetno_stock_products'))