diff --git a/src/TrafficManagement/Api/Client.php b/src/TrafficManagement/Api/Client.php
index 6a5bcbf..c2368a3 100644
--- a/src/TrafficManagement/Api/Client.php
+++ b/src/TrafficManagement/Api/Client.php
@@ -145,6 +145,7 @@ protected function apiRequest(Request $request)
             );
         }
 
+        $this->lastResponse = null;
         $this->lastHttpResponse = $httpClient->dispatch($request);
         if ($this->lastHttpResponse->isSuccess()) {
             $json = json_decode($this->lastHttpResponse->getBody());