diff --git a/lobby/templates/lobby/host_screen.html b/lobby/templates/lobby/host_screen.html
index 09d3187..b7a0d42 100644
--- a/lobby/templates/lobby/host_screen.html
+++ b/lobby/templates/lobby/host_screen.html
@@ -65,7 +65,7 @@ var lastRefreshAtLabel="";
 var lastRefreshFailed=false;
 var sessionDetailInFlight=false;
 var hostShellRouteHint="";
-var HOST_SHELL_ROUTES={lobby:"lobby",lie:"lie",guess:"guess",reveal:"reveal",finished:"finished"};
+var HOST_SHELL_ROUTES={lobby:"lobby",lie:"lie",guess:"guess",reveal:"reveal",scoreboard:"scoreboard",finished:"finished"};
 var hostShellFatalError=false;
 var hostShellRecoverInFlight=false;
 var hostCriticalHydrated=false;
diff --git a/lobby/tests.py b/lobby/tests.py
index 3938c6f..9ef6803 100644
--- a/lobby/tests.py
+++ b/lobby/tests.py
@@ -1115,6 +1115,17 @@ class UiScreenTests(TestCase):
         self.assertContains(response, "data-wpp-shell-route=\"/host/guess/round-1\"")
         self.assertContains(response, "data-wpp-shell-kind=\"host\"")
 
+    def test_host_screen_template_registers_scoreboard_shell_route(self):
+        self.client.login(username="host_ui", password="secret123")
+
+        response = self.client.get(reverse("lobby:host_screen"))
+
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(
+            response,
+            'var HOST_SHELL_ROUTES={lobby:"lobby",lie:"lie",guess:"guess",reveal:"reveal",scoreboard:"scoreboard",finished:"finished"};',
+        )
+
     @override_settings(USE_SPA_UI=True)
     def test_host_screen_deeplink_normalizes_redundant_slashes_when_feature_flag_enabled(self):
         self.client.login(username="host_ui", password="secret123")