diff --git a/tests/ert/ui_tests/gui/conftest.py b/tests/ert/ui_tests/gui/conftest.py
index c9cb07e37c9..6590180b9d5 100644
--- a/tests/ert/ui_tests/gui/conftest.py
+++ b/tests/ert/ui_tests/gui/conftest.py
@@ -183,9 +183,9 @@ def _evaluate(coeffs, x):
 
 
 @pytest.fixture
-def esmda_has_run(esmda_run, tmp_path, monkeypatch):
+def esmda_has_run(_esmda_run, tmp_path, monkeypatch):
     monkeypatch.chdir(tmp_path)
-    shutil.copytree(esmda_run, tmp_path, dirs_exist_ok=True)
+    shutil.copytree(_esmda_run, tmp_path, dirs_exist_ok=True)
     with (
         _open_main_window(tmp_path / "poly.ert") as (
             gui,