diff --git a/src/hdmf/build/objectmapper.py b/src/hdmf/build/objectmapper.py
index 0cea8840d..fc25efc16 100644
--- a/src/hdmf/build/objectmapper.py
+++ b/src/hdmf/build/objectmapper.py
@@ -17,7 +17,7 @@
 
 from ..container import AbstractContainer, Data, DataRegion
 from ..term_set import TermSetWrapper
-from ..data_utils import DataIO, AbstractDataChunkIterator, InvalidDataIOError
+from ..data_utils import DataIO, AbstractDataChunkIterator
 from ..query import ReferenceResolver
 from ..spec import Spec, AttributeSpec, DatasetSpec, GroupSpec, LinkSpec, RefSpec
 from ..spec.spec import BaseStorageSpec