diff --git a/classes/controller/FrontController.php b/classes/controller/FrontController.php
index 5b8def5f0..b319af9ba 100644
--- a/classes/controller/FrontController.php
+++ b/classes/controller/FrontController.php
@@ -1157,7 +1157,7 @@ class FrontControllerCore extends Controller
 	
 	protected function addColorsToProductList(&$products)
 	{
-		if (!count($products))
+		if (!is_array($products) || !count($products))
 			return;
 
 		$products_need_cache = array();