diff --git a/pytest_timeout.py b/pytest_timeout.py
index 6177db0..6d7cb55 100644
--- a/pytest_timeout.py
+++ b/pytest_timeout.py
@@ -75,7 +75,7 @@ def pytest_addoption(parser):
         help=METHOD_DESC,
     )
     group.addoption(
-        "--disable-debugger-detection",
+        "--timeout-disable-debugger-detection",
         dest="timeout_disable_debugger_detection",
         action="store_true",
         help=DISABLE_DEBUGGER_DETECTION_DESC,
diff --git a/test_pytest_timeout.py b/test_pytest_timeout.py
index 1db4da7..b3b6dd2 100644
--- a/test_pytest_timeout.py
+++ b/test_pytest_timeout.py
@@ -520,7 +520,7 @@ def test_foo():
             debugging_module=debugging_module, debugging_set_trace=debugging_set_trace
         )
     )
-    child = testdir.spawn_pytest(f"{p1} --disable-debugger-detection")
+    child = testdir.spawn_pytest(f"{p1} --timeout-disable-debugger-detection")
     child.expect("test_foo")
     time.sleep(1.2)
     result = child.read().decode().lower()