diff --git a/lib/poxa/users_handler.ex b/lib/poxa/users_handler.ex
index 274589e..cfe444a 100644
--- a/lib/poxa/users_handler.ex
+++ b/lib/poxa/users_handler.ex
@@ -49,8 +49,8 @@ defmodule Poxa.UsersHandler do
 
   """
   def get_json(req, channel) do
-    response = PresenceChannel.users(channel) |> Enum.map(fn(id) -> [id: id] end)
-    {Poison.encode!(users: response), req, nil}
+    response = PresenceChannel.users(channel) |> Enum.map(fn(id) -> %{ id: id } end)
+    {Poison.encode!(%{ users: response }), req, nil}
   end
 end
 
diff --git a/test/integration/presence_channel_test.exs b/test/integration/presence_channel_test.exs
index ca204e1..e9ca347 100644
--- a/test/integration/presence_channel_test.exs
+++ b/test/integration/presence_channel_test.exs
@@ -49,6 +49,8 @@ defmodule Poxa.Integration.PresenceChannelTest do
     assert_receive %{channel: ^channel,
                      event: "test_event",
                      data: %{"data" => 42}}, 1_000
+
+    assert Pusher.users(channel) == {:ok, [%{"id" => "123"}]}
   end
 
   test "member_added event on populated presence channel", context do
@@ -74,6 +76,8 @@ defmodule Poxa.Integration.PresenceChannelTest do
                      data: %{"user_id" => "123", "user_info" => %{"k2" => "v2"}},
                      event: "pusher_internal:member_added"}, 1_000
 
+    assert Pusher.users(channel) == {:ok, [%{"id" => "123"}, %{"id" => "456"}]}
+
     PusherClient.disconnect!(other_pid)
   end
 
@@ -124,6 +128,8 @@ defmodule Poxa.Integration.PresenceChannelTest do
                      data: %{"user_id" => "456"},
                      event: "pusher_internal:member_removed"}, 1_000
 
+    assert Pusher.users(channel) == {:ok, [%{"id" => "123"}]}
+
     PusherClient.disconnect!(other_pid)
   end
 
@@ -150,6 +156,8 @@ defmodule Poxa.Integration.PresenceChannelTest do
                      data: %{"user_id" => "123"},
                      event: "pusher_internal:member_removed"}, 1_000
 
+    assert Pusher.users(channel) == {:ok, [%{"id" => "123"}]}
+
     PusherClient.disconnect!(other_pid)
   end
 end
diff --git a/test/users_handler_test.exs b/test/users_handler_test.exs
index f491118..0a0f30b 100644
--- a/test/users_handler_test.exs
+++ b/test/users_handler_test.exs
@@ -31,7 +31,7 @@ defmodule Poxa.UsersHandlerTest do
 
   test "get_json returns users of a presence channel" do
     expect(PresenceChannel, :users, 1, ["user1", "user2"])
-    expected = [users: [[id: "user1"], [id: "user2"]]]
+    expected = %{ users: [%{ id: "user1" }, %{ id: "user2" }] }
     expect(Poison, :encode!, [{[expected], :encoded_json}])
 
     assert get_json(:req, "channel123") == {:encoded_json, :req, nil}