diff --git a/app/routes/anpdf.php b/app/routes/anpdf.php
index e26b6f1..1331d2c 100644
--- a/app/routes/anpdf.php
+++ b/app/routes/anpdf.php
@@ -225,7 +225,7 @@ function read_kuri($hash, $page = 0, $promo = false, $version = null){
     } 
 
 
-    if ($price['html'] = '.html'){
+    if ($price['html'] == '.html'){
         return readbook_kuri($hash, $page = 1);
     }