diff --git a/includes/class-tulo-paywall.php b/includes/class-tulo-paywall.php
index c9e839c..8c48e18 100644
--- a/includes/class-tulo-paywall.php
+++ b/includes/class-tulo-paywall.php
@@ -61,7 +61,7 @@ public function get_back_url() {
     }
     
     public function get_return_url() {
-        $currentUrl = get_current_url();
+        $currentUrl = $this->get_current_url();
         if (str_contains($currentUrl, "?")) {
             $currentUrl .= "&tpw_session_refresh=1";
         } else {