diff --git a/nixos/tests/caddy.nix b/nixos/tests/caddy.nix
index a5ca2f3d29bf7..71d73465d0887 100644
--- a/nixos/tests/caddy.nix
+++ b/nixos/tests/caddy.nix
@@ -41,6 +41,11 @@ import ./make-test-python.nix (
               "http://localhost:8081" = { };
             };
           };
+          specialisation.multiple-hostnames.configuration = {
+            services.caddy.virtualHosts = {
+              "http://localhost:8080 http://localhost:8081" = { };
+            };
+          };
           specialisation.rfc42.configuration = {
             services.caddy.settings = {
               apps.http.servers.default = {
@@ -93,6 +98,7 @@ import ./make-test-python.nix (
         explicitConfigFile = "${nodes.webserver.system.build.toplevel}/specialisation/explicit-config-file";
         justReloadSystem = "${nodes.webserver.system.build.toplevel}/specialisation/config-reload";
         multipleConfigs = "${nodes.webserver.system.build.toplevel}/specialisation/multiple-configs";
+        multipleHostnames = "${nodes.webserver.system.build.toplevel}/specialisation/multiple-hostnames";
         rfc42Config = "${nodes.webserver.system.build.toplevel}/specialisation/rfc42";
         withPluginsConfig = "${nodes.webserver.system.build.toplevel}/specialisation/with-plugins";
       in
@@ -117,6 +123,13 @@ import ./make-test-python.nix (
             webserver.wait_for_open_port(8080)
             webserver.wait_for_open_port(8081)
 
+        with subtest("a virtual host with multiple hostnames works"):
+            webserver.succeed(
+                "${multipleHostnames}/bin/switch-to-configuration test >&2"
+            )
+            webserver.wait_for_open_port(8080)
+            webserver.wait_for_open_port(8081)
+
         with subtest("rfc42 settings config"):
             webserver.succeed(
                 "${rfc42Config}/bin/switch-to-configuration test >&2"