diff --git a/mix.exs b/mix.exs
index 3b0b061..37a45a9 100644
--- a/mix.exs
+++ b/mix.exs
@@ -16,7 +16,8 @@ defmodule ExAzure.Mixfile do
 
   def application do
     [applications: [:erlazure],
-     mod: {ExAzure, []}]
+    extra_applications: [:xmerl],
+    mod: {ExAzure, []}]
   end
 
   defp deps do