diff --git a/scripts/dev/check_coverage.py b/scripts/dev/check_coverage.py
index e7e3e7c3d..0c328c9e4 100644
--- a/scripts/dev/check_coverage.py
+++ b/scripts/dev/check_coverage.py
@@ -162,6 +162,8 @@ def check(fileobj, perfect_files):
         raise Skipped("because -k is given.")
     elif '-m' in sys.argv[1:]:
         raise Skipped("because -m is given.")
+    elif '--lf' in sys.argv[1:]:
+        raise Skipped("because --lf is given.")
 
     perfect_src_files = [e[1] for e in perfect_files]
 
diff --git a/tests/unit/scripts/test_check_coverage.py b/tests/unit/scripts/test_check_coverage.py
index a458132a2..b0dae3b6c 100644
--- a/tests/unit/scripts/test_check_coverage.py
+++ b/tests/unit/scripts/test_check_coverage.py
@@ -166,6 +166,7 @@ def test_tested_unlisted(covtest):
 @pytest.mark.parametrize('args, reason', [
     (['-k', 'foo'], "because -k is given."),
     (['-m', 'foo'], "because -m is given."),
+    (['--lf'], "because --lf is given."),
     (['blah', '-m', 'foo'], "because -m is given."),
     (['tests/foo'], "because there is nothing to check."),
 ])