diff --git a/radicale/app/report.py b/radicale/app/report.py
index 26ad1722..44e41d1e 100644
--- a/radicale/app/report.py
+++ b/radicale/app/report.py
@@ -310,7 +310,8 @@ def xml_report(base_prefix: str, path: str, xml_request: Optional[ET.Element],
                     found_props.append(expanded_element)
                 else:
                     found_props.append(element)
-                    n_vevents += len(item.vobject_item.vevent_list)
+                    if hasattr(item.vobject_item, "vevent_list"):
+                        n_vevents += len(item.vobject_item.vevent_list)
                 # Avoid DoS with too many events
                 if max_occurrence and n_vevents > max_occurrence:
                     raise ValueError("REPORT occurrences limit of {} hit"