diff --git a/frappe/desk/doctype/event/event.py b/frappe/desk/doctype/event/event.py
index 5463df6413..bf56498780 100644
--- a/frappe/desk/doctype/event/event.py
+++ b/frappe/desk/doctype/event/event.py
@@ -121,9 +121,7 @@ class Event(Document):
 					["Communication Link", "link_doctype", "=", participant.reference_doctype],
 					["Communication Link", "link_name", "=", participant.reference_docname],
 				]
-				comms = frappe.get_all("Communication", filters=filters, fields=["name"])
-
-				if comms:
+				if comms := frappe.get_all("Communication", filters=filters, fields=["name"], distinct=True):
 					for comm in comms:
 						communication = frappe.get_doc("Communication", comm.name)
 						self.update_communication(participant, communication)