diff --git a/tests/pytests/unit/modules/test_aptpkg.py b/tests/pytests/unit/modules/test_aptpkg.py
index a2195ac731f9..e2937c9e9367 100644
--- a/tests/pytests/unit/modules/test_aptpkg.py
+++ b/tests/pytests/unit/modules/test_aptpkg.py
@@ -1183,6 +1183,7 @@ def test_list_repos():
                 assert repos[source_uri][0]["uri"][-1] == "/"
 
 
+@pytest.mark.filterwarnings("RuntimeError")
 def test__expand_repo_def():
     """
     Checks results from _expand_repo_def