diff --git a/test/towerops_web/controllers/error_html_test.exs b/test/towerops_web/controllers/error_html_test.exs
index 11567612..1579cd49 100644
--- a/test/towerops_web/controllers/error_html_test.exs
+++ b/test/towerops_web/controllers/error_html_test.exs
@@ -16,4 +16,16 @@ defmodule ToweropsWeb.ErrorHTMLTest do
     assert html =~ "500"
     assert html =~ "Something went wrong on our end"
   end
+
+  test "renders fallback status message for unknown templates" do
+    # Test the fallback render/2 function for error codes without custom templates
+    result = ToweropsWeb.ErrorHTML.render("503.html", %{})
+    assert result == "Service Unavailable"
+
+    result = ToweropsWeb.ErrorHTML.render("401.html", %{})
+    assert result == "Unauthorized"
+
+    result = ToweropsWeb.ErrorHTML.render("403.html", %{})
+    assert result == "Forbidden"
+  end
 end