diff --git a/tests/keycloak.nix b/tests/keycloak.nix
index 59b085a..4d8e10c 100644
--- a/tests/keycloak.nix
+++ b/tests/keycloak.nix
@@ -81,6 +81,7 @@ in
       nachtigall.succeed("ping 127.0.0.1 -c 2")
       nachtigall.wait_for_unit("nginx.service")
       nachtigall.wait_for_unit("keycloak.service")
+      nachtigall.wait_for_open_port(8080)
       nachtigall.wait_until_succeeds("curl http://127.0.0.1:8080/")
       nachtigall.wait_until_succeeds("curl https://auth.test.pub.solar/")