diff --git a/src/Api/Message.php b/src/Api/Message.php
index f804a49..333c767 100644
--- a/src/Api/Message.php
+++ b/src/Api/Message.php
@@ -144,8 +144,6 @@ class Message extends HttpApi
             }
 
             $resource = fopen($path, 'r');
-        } else {
-            throw new InvalidArgumentException('When using a file you need to specify parameter "fileContent" or "filePath"');
         }
 
         return [