diff --git a/README.md b/README.md
index 6188e22..9d3ac8c 100644
--- a/README.md
+++ b/README.md
@@ -33,11 +33,11 @@ $ composer install
 You'll also need to add the following to your functions.php file:
 
 ```php
-require_once TEMPLATEPATH . '/image-processing-queue/vendor/a5hleyrich/wp-background-processing/classes/wp-async-request.php';
-require_once TEMPLATEPATH . '/image-processing-queue/vendor/a5hleyrich/wp-background-processing/classes/wp-background-process.php';
-require_once TEMPLATEPATH . '/image-processing-queue/includes/class-ipq-process.php';
-require_once TEMPLATEPATH . '/image-processing-queue/includes/class-image-processing-queue.php';
-require_once TEMPLATEPATH . '/image-processing-queue/includes/ipq-template-functions.php';
+require_once get_stylesheet_directory() . '/image-processing-queue/vendor/a5hleyrich/wp-background-processing/classes/wp-async-request.php';
+require_once get_stylesheet_directory() . '/image-processing-queue/vendor/a5hleyrich/wp-background-processing/classes/wp-background-process.php';
+require_once get_stylesheet_directory() . '/image-processing-queue/includes/class-ipq-process.php';
+require_once get_stylesheet_directory() . '/image-processing-queue/includes/class-image-processing-queue.php';
+require_once get_stylesheet_directory() . '/image-processing-queue/includes/ipq-template-functions.php';
 
 Image_Processing_Queue::instance();
 
@@ -61,4 +61,4 @@ echo ipq_get_theme_image( $post_id, array(
 
 ## License
 
-[GPLv2+](http://www.gnu.org/licenses/gpl-2.0.html)
\ No newline at end of file
+[GPLv2+](http://www.gnu.org/licenses/gpl-2.0.html)