diff --git a/lib/pleroma/web/twitter_api/twitter_api.ex b/lib/pleroma/web/twitter_api/twitter_api.ex
index 8608ee9ac..ce0da3340 100644
--- a/lib/pleroma/web/twitter_api/twitter_api.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api.ex
@@ -143,7 +143,7 @@ def register_user(params) do
     end
 
     cond do
-      @registrations_open || !is_nil(token) && !token.used ->
+      @registrations_open || (!is_nil(token) && !token.used) ->
         changeset = User.register_changeset(%User{}, params)
 
         with {:ok, user} <- Repo.insert(changeset) do
@@ -155,11 +155,14 @@ def register_user(params) do
               Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end)
               |> Jason.encode!()
 
-          {:error, %{error: errors}}
+            {:error, %{error: errors}}
         end
 
-      !@registrations_open && is_nil(token) -> {:error, "Invalid token"}
-      !@registrations_open && token.used -> {:error, "Expired token"}
+      !@registrations_open && is_nil(token) ->
+        {:error, "Invalid token"}
+
+      !@registrations_open && token.used ->
+        {:error, "Expired token"}
     end
   end
 
diff --git a/test/web/twitter_api/twitter_api_test.exs b/test/web/twitter_api/twitter_api_test.exs
index ed9158bf5..bdf2f2885 100644
--- a/test/web/twitter_api/twitter_api_test.exs
+++ b/test/web/twitter_api/twitter_api_test.exs
@@ -266,8 +266,9 @@ test "it registers a new user via invite token and returns the user." do
     token = Repo.get_by(UserInviteToken, token: token.token)
 
     assert token.used == true
+
     assert UserView.render("show.json", %{user: user}) ==
-      UserView.render("show.json", %{user: fetched_user})
+             UserView.render("show.json", %{user: fetched_user})
   end
 
   @moduletag skip: "needs 'registrations_open: false' in config"