diff --git a/borg/testsuite/lrucache.py b/borg/testsuite/lrucache.py
index 153250d8a..2ed2ef9b3 100644
--- a/borg/testsuite/lrucache.py
+++ b/borg/testsuite/lrucache.py
@@ -48,5 +48,5 @@ class TestLRUCache:
         assert 2 not in c
         assert f2.closed
         c.clear()
-        assert not c.items()
+        assert c.items() == set()
         assert f3.closed