diff --git a/tests/unit/utils.py b/tests/unit/utils.py
index 9529fcea..67f2e8e0 100644
--- a/tests/unit/utils.py
+++ b/tests/unit/utils.py
@@ -9,9 +9,9 @@
                        SpecNamespace, NamespaceBuilder)
 from hdmf.spec.spec import (ZERO_OR_MANY, ONE_OR_MANY, ZERO_OR_ONE)
 from hdmf.utils import (docval, getargs, get_docval)
+from hdmf_zarr.backend import ROOT_NAME
 
 CORE_NAMESPACE = 'test_core'
-from hdmf_zarr.backend import ROOT_NAME
 
 
 class CacheSpecTestHelper(object):