diff --git a/ruby/lib/jam_ruby/models/notification.rb b/ruby/lib/jam_ruby/models/notification.rb
index 6fd14da13..9183e4bf3 100644
--- a/ruby/lib/jam_ruby/models/notification.rb
+++ b/ruby/lib/jam_ruby/models/notification.rb
@@ -882,7 +882,7 @@ module JamRuby
 
       def send_scheduled_session_comment(music_session, creator, comment)
 
-        return if music_session.nil? || comment.blank?
+        return if music_session.nil? || creator.nil? || comment.blank?
 
         rsvp_requests = RsvpRequest.index(music_session)
         target_users = rsvp_requests.map { |r| r.user }