diff --git a/app/models/synapse.rb b/app/models/synapse.rb
index 33cfab86..7e361af3 100644
--- a/app/models/synapse.rb
+++ b/app/models/synapse.rb
@@ -36,7 +36,7 @@ class Synapse < ActiveRecord::Base
   # :nocov:
   def collaborator_ids
     if defer_to_map
-      defer_to_map.collaborators.map(&:id)
+      defer_to_map.editors.select{|mapper| not mapper == self.user }.map(&:id)
     else
       []
     end
diff --git a/app/models/topic.rb b/app/models/topic.rb
index 95663055..61f405de 100644
--- a/app/models/topic.rb
+++ b/app/models/topic.rb
@@ -92,7 +92,7 @@ class Topic < ActiveRecord::Base
 
   def collaborator_ids
     if defer_to_map
-      defer_to_map.collaborators.map(&:id)
+      defer_to_map.editors.select{|mapper| not mapper == self.user }.map(&:id)
     else
       []
     end