diff --git a/tests/test_filters.py b/tests/test_filters.py
index 9ba4bc4ddf538b5080972676d7a3996a7f8e8f40..ca83d74749d32f0321a923bce15cbf13e228c16c 100644
--- a/tests/test_filters.py
+++ b/tests/test_filters.py
@@ -153,5 +153,9 @@ def test_remove_opening_balance_txn(opening_txn):
         entries.insert(1, opening_txn)
     actual = filters.remove_opening_balance_txn(entries)
     assert actual is opening_txn
-    assert len(entries) == 2
     assert opening_txn not in entries
+    assert not any(
+        post.account.startswith('Equity:')
+        for entry in entries
+        for post in getattr(entry, 'postings', ())
+    )