diff --git a/tests/tui_gateway/test_shell_exec_security.py b/tests/tui_gateway/test_shell_exec_security.py
index 3dfcb7f6de..8f5965ebb9 100644
--- a/tests/tui_gateway/test_shell_exec_security.py
+++ b/tests/tui_gateway/test_shell_exec_security.py
@@ -24,7 +24,6 @@ def test_shell_exec_scrubs_child_env_and_force_redacts_rpc_output(monkeypatch):
     monkeypatch.setenv("OPENROUTER_API_KEY", secret)
     monkeypatch.setattr(redact, "_REDACT_ENABLED", False)
     monkeypatch.setattr(server.subprocess, "run", fake_run)
-    monkeypatch.setattr(server, "detect_hardline_command", lambda _command: (False, ""), raising=False)
 
     response = server.handle_request(
         {"id": "security", "method": "shell.exec", "params": {"command": "echo safe"}}
@@ -33,4 +32,4 @@ def test_shell_exec_scrubs_child_env_and_force_redacts_rpc_output(monkeypatch):
     assert "OPENROUTER_API_KEY" not in captured["env"]
     assert secret not in response["result"]["stdout"]
     assert secret not in response["result"]["stderr"]
-    assert "visible" in response["result"]["stdout"]
\ No newline at end of file
+    assert "visible" in response["result"]["stdout"]