diff --git a/index-redis-page-cache.php b/index-redis-page-cache.php
index 340f0c20d5cc3b9f05b9da14c196948e0efc7219..8dbd09b177dfd75c643c569cc569995cf52ec054 100644
--- a/index-redis-page-cache.php
+++ b/index-redis-page-cache.php
@@ -303,7 +303,7 @@ try {
 
 				// Render page into an output buffer and display
 				ob_start();
-				require_once dirname( __FILE__ ) . '/wp`-blog-header.php';
+				require_once dirname( __FILE__ ) . '/wp-blog-header.php';
 				$markup_to_cache = trim( ob_get_clean() );
 				echo $markup_to_cache;