diff --git a/tests/test_config.py b/tests/test_config.py
index 7b3ae7ee06809fed16c55292b919d41a2262decf..f709ae1e425a2b260447397a0db358111fbec27d 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -398,7 +398,9 @@ def test_books_loader():
     config = config_mod.Config()
     config.load_string(f'[Beancount]\nbooks dir = {books_path}\n')
     loader = config.books_loader()
-    assert loader.fy_range_string(2020, 2020)
+    entries, errors, _ = loader.load_fy_range(2020, 2020)
+    assert entries
+    assert not errors
 
 def test_books_loader_without_books():
     assert config_mod.Config().books_loader() is None