diff --git a/src/resolvers/products-resolver.ts b/src/resolvers/products-resolver.ts
index 15701d2..a35fc8c 100644
--- a/src/resolvers/products-resolver.ts
+++ b/src/resolvers/products-resolver.ts
@@ -78,7 +78,10 @@ const Product = {
 
     return [
       { attribute: 'color', values: colors },
-      { attribute: 'orientation', values: orientations },
+      {
+        attribute: 'orientation',
+        values: orientations.map((value) => value.toLowerCase()),
+      },
       { attribute: 'type', values: types },
     ];
   },