diff --git a/cloudflare.php b/cloudflare.php
index e74d2ef..2ec0e6e 100755
--- a/cloudflare.php
+++ b/cloudflare.php
@@ -240,7 +240,7 @@ function __construct($apiKey, $hostname, $ipv4)
         $this->ipv4 = $ipv4;
 
         try {
-            $ipv6 = $this->ipify->tryGetIpv6();
+            $this->ipv6 = $this->ipify->tryGetIpv6();
         } catch (Exception $e) {
             // IPv6 not available
         }
@@ -439,4 +439,4 @@ private function exitWithSynologyMsg($msg = '')
         exit();
     }
 }
-?>
\ No newline at end of file
+?>