diff --git a/src/clear_bookings.py b/src/clear_bookings.py
index 5d2fab7..0374d07 100644
--- a/src/clear_bookings.py
+++ b/src/clear_bookings.py
@@ -439,7 +439,8 @@ def find_overlapping_events(events: list[DavEvent]) -> dict:
     for event in events:
 
         # Skip if the event is already in the overlapping events dictionary
-        if overlapping_events.get(event.extended_uid):
+        # or if it is already canceled
+        if overlapping_events.get(event.extended_uid) or event.is_cancelled:
             continue
 
         for compare_event in events:
@@ -449,8 +450,9 @@ def find_overlapping_events(events: list[DavEvent]) -> dict:
                 continue
 
             # Skip if the compare_event is already in the overlapping events
-            # dictionary
-            if overlapping_events.get(compare_event.extended_uid):
+            # dictionary or if it is already canceled
+            if (overlapping_events.get(compare_event.extended_uid)
+                    or compare_event.is_cancelled):
                 continue
 
             # Check if the events overlap