diff --git a/Model/ApiFacade/Transaction/TransactionApiFacade.php b/Model/ApiFacade/Transaction/TransactionApiFacade.php
index 9fbd0da..1c7759e 100755
--- a/Model/ApiFacade/Transaction/TransactionApiFacade.php
+++ b/Model/ApiFacade/Transaction/TransactionApiFacade.php
@@ -74,7 +74,7 @@ public function channels(): array
             return [];
         }
 
-        $cacheKey = 'tpay_channels'.md5(join('|', [$this->tpay->getOpenApiClientId(), $this->tpay->getOpenApiPassword(), !$this->tpay->useSandboxMode()]));
+        $cacheKey = 'tpay_channels_'.md5(join('|', [$this->tpay->getOpenApiClientId(), $this->tpay->getOpenApiPassword(), !$this->tpay->useSandboxMode()]));
 
         $channels = $this->cache->load($cacheKey);