diff --git a/README.md b/README.md
index 85f5582..4e78a97 100755
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ A WordPress plugin to filter posts with taxonomies terms and load more posts via
 You can add posts and filters via a **shortcode** on any page.
 
 ```
-[ajax_filter_posts post_type='recipe' tax="meal_type, food_type, diet_type"  posts_per_page="12"]
+[ajax_filter_posts post_type="recipe" tax="meal_type, food_type, diet_type"  posts_per_page="12"]
 ```
 
 This plugins uses no dependencies, is translatable and WPML ready.