diff --git a/brainbox/tests/test_io.py b/brainbox/tests/test_io.py
index 59a1d2126..b7148c123 100644
--- a/brainbox/tests/test_io.py
+++ b/brainbox/tests/test_io.py
@@ -54,7 +54,7 @@ def setUp(self) -> None:
         # Add some fake records to the cache
         if not self.one.search(subject='subject', date='2019-08-12', number='001'):
             make_parquet_db(self.tmpdir)
-            self.one._load_cache(cache_dir=self.tmpdir)
+            self.one.load_cache(cache_dir=self.tmpdir)
 
     def test_load_ephys(self):
         # straight test