diff --git a/README.md b/README.md
index b560f05..0539151 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,9 @@ $ git clone https://github.com/invite-frey/is-woo-payment-fps.git
 ### 1.4
 * Optional QRCode caching added
 
+### 1.41
+* Bugfix
+
 ## Donations
 
 Donations are much appreciated if you found this resource useful. 
diff --git a/hong-kong-fps-woo-payment.php b/hong-kong-fps-woo-payment.php
index 4141fba..ea9bc23 100644
--- a/hong-kong-fps-woo-payment.php
+++ b/hong-kong-fps-woo-payment.php
@@ -1,14 +1,14 @@
 <?php 
 /**
  * @package Hong_Kong_FPS_Woo_Payment
- * @version 1.4
+ * @version 1.41
  */
 /*
 Plugin Name: Hong Kong FPS Woo Payment
 Plugin URI: https://github.com/invite-frey/is-woo-payment-fps
 Description: Woocommerce payment method enabling Hong Kong FPS payments. Displays QR code and FPS payent if to user. Requires manual confirmation.
 Author: Frey Mansikkaniemi, invITe Services
-Version: 1.4
+Version: 1.41
 Author URI: http://frey.hk/
 License: GPLv3
 */
diff --git a/readme.txt b/readme.txt
index fe978b1..6725ce0 100644
--- a/readme.txt
+++ b/readme.txt
@@ -64,3 +64,6 @@ Enables [FPS](https://www.hkma.gov.hk/eng/key-functions/international-financial-
 
 = 1.4 =
 * Optional QRCode caching added
+
+= 1.41 =
+* Bugfix
diff --git a/wc-gateway-invite-fps-payment-gateway-class.php b/wc-gateway-invite-fps-payment-gateway-class.php
index 1daa14e..ae42596 100644
--- a/wc-gateway-invite-fps-payment-gateway-class.php
+++ b/wc-gateway-invite-fps-payment-gateway-class.php
@@ -270,7 +270,7 @@ if( !class_exists('WC_Gateway_Invite_FPS_Payment_Gateway') ){
             $qrcode = new ITS_FPS_QRCodeData($fps_data);
     
             $qr_code_url = 
-                $this->write_qr_code_to_file ? 
+                $this->write_qr_code_to_file === 'yes' ? 
                 $this->qrcode_file_url($qrcode->getDataString()) :
                 add_query_arg(
                     '_wpnonce',