diff --git a/src/pyj/range_utils.pyj b/src/pyj/range_utils.pyj
index 540f3f9a63..d677d3df99 100644
--- a/src/pyj/range_utils.pyj
+++ b/src/pyj/range_utils.pyj
@@ -243,7 +243,7 @@ def get_annot_id_for(node, offset, annot_id_uuid_map):
     if not node:
         return
     if node.nodeType is Node.ELEMENT_NODE:
-        if node.dataset.calibreRangeWrapper:
+        if node.dataset?.calibreRangeWrapper:
             return annot_id_uuid_map[node.dataset.calibreRangeWrapper]
         if offset is 0:
             if node.firstChild?.nodeType is Node.ELEMENT_NODE and node.firstChild.dataset?.calibreRangeWrapper: