diff --git a/lib/pigeon/application.ex b/lib/pigeon/application.ex
index f03b0669..83a8e27e 100644
--- a/lib/pigeon/application.ex
+++ b/lib/pigeon/application.ex
@@ -7,7 +7,7 @@ defmodule Pigeon.Application do
 
   @doc false
   def start(_type, _args) do
-    Client.default().start
+    Client.default().start()
 
     children = [
       Pigeon.Registry,