diff --git a/news/ical.py b/news/ical.py
index ed19e9f9..242de7d5 100644
--- a/news/ical.py
+++ b/news/ical.py
@@ -44,9 +44,12 @@ def item_location(self, item):
         return item.place
 
     def item_organizer(self, item):
-        if not item.responsible:
-            return ""
-        return f"{item.responsible.first_name} {item.responsible.last_name}"
+        return ",".join(
+            [
+                f"{responsible.first_name} {responsible.last_name}"
+                for responsible in item.responsibles.all()
+            ]
+        )
 
 
 class HSEventSingleFeed(HSEventFeed):