diff --git a/tests/unit/base_tests_zarrio.py b/tests/unit/base_tests_zarrio.py
index 8c06e44d..199ce7aa 100644
--- a/tests/unit/base_tests_zarrio.py
+++ b/tests/unit/base_tests_zarrio.py
@@ -1470,6 +1470,10 @@ class OtherIO(HDMFIO):
             def __init__(self, manager):
                 super().__init__(manager=manager)
 
+            @staticmethod
+            def can_read(path):
+                pass
+
             def read_builder(self):
                 pass