diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 510c06b..1e35bb8 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -1700,8 +1700,9 @@ class Event(models.Model):
             eventIcal.add("summary", event.title)
             eventIcal.add("name", event.title)
             url = ("\n" + event.reference_urls[0]) if event.reference_urls and len(event.reference_urls) > 0 else ""
+            description = event.description if event.description else ""
             eventIcal.add(
-                "description", event.description + url
+                "description", description + url
             )
             eventIcal.add("location", event.exact_location or event.location)