diff --git a/lib/geo_postgis/geometry.ex b/lib/geo_postgis/geometry.ex
index dc1ed60..a35197c 100644
--- a/lib/geo_postgis/geometry.ex
+++ b/lib/geo_postgis/geometry.ex
@@ -57,6 +57,8 @@ if Code.ensure_loaded?(Ecto.Type) do
       GeometryCollection
     ]
 
+    @type t :: Geo.geometry()
+
     if macro_exported?(Ecto.Type, :__using__, 1) do
       use Ecto.Type
     else
diff --git a/test/ecto_test.exs b/test/ecto_test.exs
index b449197..f9b67ea 100644
--- a/test/ecto_test.exs
+++ b/test/ecto_test.exs
@@ -37,8 +37,7 @@ defmodule Geo.Ecto.Test do
   setup _ do
     {:ok, pid} = Postgrex.start_link(Geo.Test.Helper.opts())
 
-    {:ok, _} =
-      Postgrex.query(pid, "CREATE EXTENSION IF NOT EXISTS postgis", [])
+    {:ok, _} = Postgrex.query(pid, "CREATE EXTENSION IF NOT EXISTS postgis", [])
 
     {:ok, _} =
       Postgrex.query(pid, "DROP TABLE IF EXISTS locations, geographies, location_multi", [])