diff --git a/mix.exs b/mix.exs
index 39c044e..98f7e80 100644
--- a/mix.exs
+++ b/mix.exs
@@ -18,6 +18,6 @@ defmodule EctoTtl.Mixfile do
      {:mariaex, ">= 0.0.0", optional: true},
      {:ecto, ">= 0.13.0"},
      {:ecto_it, ">= 0.1.0", optional: true},
-     {:ecto_migrate, ">= 0.4.0"}]
+     {:ecto_migrate, ">= 0.4.0", optional: true}]
   end
 end