diff --git a/lib/beacon/web/data_source.ex b/lib/beacon/web/data_source.ex
index 8b3f4e96e..4c9b0b062 100644
--- a/lib/beacon/web/data_source.ex
+++ b/lib/beacon/web/data_source.ex
@@ -3,6 +3,8 @@ defmodule Beacon.Web.DataSource do
 
   require Logger
 
+  def live_data(site, path_info, query_params \\ %{})
+
   def live_data(site, path_info, query_params) when is_atom(site) and is_list(path_info) and is_map(query_params) do
     Beacon.apply_mfa(site, Beacon.Loader.fetch_live_data_module(site), :live_data, [path_info, query_params])
   end
diff --git a/test/beacon_web/data_source_test.exs b/test/beacon_web/data_source_test.exs
index f35eaffd0..7ccb7a8fc 100644
--- a/test/beacon_web/data_source_test.exs
+++ b/test/beacon_web/data_source_test.exs
@@ -15,10 +15,18 @@ defmodule Beacon.Web.DataSourceTest do
     [site: site]
   end
 
-  test "live_data", %{site: site} do
-    live_data = beacon_live_data_fixture()
-    beacon_live_data_assign_fixture(live_data: live_data, format: :text, key: "name", value: "beacon")
-    assert DataSource.live_data(site, ["foo", "bar"], %{}) == %{name: "beacon"}
+  describe "live_data" do
+    test "with existing data", %{site: site} do
+      live_data = beacon_live_data_fixture()
+      beacon_live_data_assign_fixture(live_data: live_data, format: :text, key: "name", value: "beacon")
+      assert DataSource.live_data(site, ["foo", "bar"], %{}) == %{name: "beacon"}
+    end
+
+    test "query params defaults to empty map", %{site: site} do
+      live_data = beacon_live_data_fixture()
+      beacon_live_data_assign_fixture(live_data: live_data, format: :text, key: "name", value: "beacon")
+      assert DataSource.live_data(site, ["foo", "bar"]) == %{name: "beacon"}
+    end
   end
 
   describe "page_title" do