diff --git a/include/Product.php b/include/Product.php
index 2475145..111677c 100644
--- a/include/Product.php
+++ b/include/Product.php
@@ -147,7 +147,7 @@ class Product extends Entity {
             // print('<br><br>');
 
             print('=== DEBUG diff $terms and $matches ===<br>');
-            var_dump($array_diff_assoc($terms, $matches));
+            var_dump(array_diff_assoc($terms, $matches));
             print('<br><br>');
             print('=== DEBUG $matches ===<br>');
             var_dump($matches);