diff --git a/check_dtypes.py b/check_dtypes.py
index bae19cd..082d445 100644
--- a/check_dtypes.py
+++ b/check_dtypes.py
@@ -26,6 +26,7 @@ EXPECTED_TYPES = {
         r"relatedItem-.*_recordInfo_recordIdentifier": ("object", ["str", "NoneType"]),
         r".*-count": ("Int64", None),
         r"typeOfResource": ("object", ["str", "NoneType"]),
+        r"accessCondition-.*": ("object", ["str", "NoneType"]),
 
         # XXX possibly sets:
         r"genre-.*": ("object", ["str", "NoneType"]),