diff --git a/tests/rpc/test_rpc_apiserver.py b/tests/rpc/test_rpc_apiserver.py
index 1517b6fcc..edf5ce3c5 100644
--- a/tests/rpc/test_rpc_apiserver.py
+++ b/tests/rpc/test_rpc_apiserver.py
@@ -109,6 +109,10 @@ def test_api_ui_fallback(botclient):
     rc = client_get(client, "/something")
     assert rc.status_code == 200
 
+    rc = client_get(client, '%2F%2F%2Fetc/passwd')
+    assert rc.status_code == 200
+    assert '`freqtrade install-ui`' in rc.text
+
 
 def test_api_ui_version(botclient, mocker):
     ftbot, client = botclient