diff --git a/index.php b/index.php
index f42e63f..f67ebf9 100644
--- a/index.php
+++ b/index.php
@@ -1,7 +1,6 @@
 <?php
-define( 'BLOCK_NAMESPACE', '<<INSERT BLOCK NAMESPACE HERE>>' );
 
-$block_namespace = BLOCK_NAMESPACE;
+$block_namespace = '<<INSERT BLOCK NAMESPACE HERE>>';
 $block_slug = basename( dirname( __FILE__ ) );
 
 add_action( 'init', function() {