diff --git a/src/RequestManagers/HttpRequestManager.php b/src/RequestManagers/HttpRequestManager.php
index 6405321..1ef6752 100644
--- a/src/RequestManagers/HttpRequestManager.php
+++ b/src/RequestManagers/HttpRequestManager.php
@@ -105,7 +105,7 @@ class HttpRequestManager extends RequestManager implements IRequestManager
                 } else {
                     call_user_func($callback, null, $results);
                 }
-            } elseif (isset($json->result)) {
+            } elseif (property_exists($json,'result')) {
                 call_user_func($callback, null, $json->result);
             } else {
                 if (isset($json->error)) {