diff --git a/lib/mobilizon/actors/actor.ex b/lib/mobilizon/actors/actor.ex
index 0b282f80b..39b802add 100644
--- a/lib/mobilizon/actors/actor.ex
+++ b/lib/mobilizon/actors/actor.ex
@@ -174,10 +174,12 @@ defmodule Mobilizon.Actors.Actor do
     |> put_change(:local, true)
   end
 
-  @spec build_urls(Ecto.Changeset.t, atom()) :: Ecto.Changeset.t
+  @spec build_urls(Ecto.Changeset.t(), atom()) :: Ecto.Changeset.t()
   defp build_urls(changeset, type \\ :Person)
+
   defp build_urls(%Ecto.Changeset{changes: %{preferred_username: username}} = changeset, type) do
     symbol = if type == :Group, do: "~", else: "@"
+
     changeset
     |> put_change(
       :outbox_url,
diff --git a/lib/mobilizon_web/resolvers/group.ex b/lib/mobilizon_web/resolvers/group.ex
index 1a8166dc9..a4170c7a2 100644
--- a/lib/mobilizon_web/resolvers/group.ex
+++ b/lib/mobilizon_web/resolvers/group.ex
@@ -21,7 +21,7 @@ defmodule MobilizonWeb.Resolvers.Group do
   Lists all groups
   """
   def list_groups(_parent, _args, _resolution) do
-    {:ok, Actors.list_groups}
+    {:ok, Actors.list_groups()}
   end
 
   @doc """
@@ -34,15 +34,15 @@ defmodule MobilizonWeb.Resolvers.Group do
           context: %{current_user: user}
         }
       ) do
-
     with %Actor{id: actor_id} <- Actors.get_local_actor_by_name(actor_username),
          {:user_actor, true} <-
            {:user_actor, actor_id in Enum.map(Actors.get_actors_for_user(user), & &1.id)},
-        {:ok, %Actor{} = group} <- Actors.create_group(%{preferred_username: preferred_username}) do
-          {:ok, group}
+         {:ok, %Actor{} = group} <- Actors.create_group(%{preferred_username: preferred_username}) do
+      {:ok, group}
     else
       {:error, %Ecto.Changeset{errors: [url: {"has already been taken", []}]}} ->
         {:error, :group_name_not_available}
+
       err ->
         Logger.error(inspect(err))
         err
diff --git a/lib/mobilizon_web/schema.ex b/lib/mobilizon_web/schema.ex
index 826a4b4e5..4cc238f1c 100644
--- a/lib/mobilizon_web/schema.ex
+++ b/lib/mobilizon_web/schema.ex
@@ -548,6 +548,7 @@ defmodule MobilizonWeb.Schema do
       arg(:creator_username, :string,
         description: "The actor's username which will be the admin (otherwise user's default one)"
       )
+
       resolve(&Resolvers.Group.create_group/3)
     end
 
diff --git a/test/mobilizon_web/resolvers/group_resolver_test.exs b/test/mobilizon_web/resolvers/group_resolver_test.exs
index b2e34714e..5395e15df 100644
--- a/test/mobilizon_web/resolvers/group_resolver_test.exs
+++ b/test/mobilizon_web/resolvers/group_resolver_test.exs
@@ -35,11 +35,12 @@ defmodule MobilizonWeb.Resolvers.GroupResolverTest do
         |> auth_conn(user)
         |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
 
-        assert json_response(res, 200)["data"]["createGroup"]["preferred_username"] ==
-        @new_group_params.groupname
-        assert json_response(res, 200)["data"]["createGroup"]["type"] == "GROUP"
+      assert json_response(res, 200)["data"]["createGroup"]["preferred_username"] ==
+               @new_group_params.groupname
 
-        mutation = """
+      assert json_response(res, 200)["data"]["createGroup"]["type"] == "GROUP"
+
+      mutation = """
           mutation {
             createGroup(
               preferred_username: "#{@new_group_params.groupname}",
@@ -56,11 +57,12 @@ defmodule MobilizonWeb.Resolvers.GroupResolverTest do
         |> auth_conn(user)
         |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
 
-        assert hd(json_response(res, 200)["errors"])["message"] == "group_name_not_available"
+      assert hd(json_response(res, 200)["errors"])["message"] == "group_name_not_available"
     end
 
     test "list_groups/3 returns all groups", context do
       group = insert(:group)
+
       query = """
       {
         groups {