diff --git a/app/models/synapse.rb b/app/models/synapse.rb
index 07a17e54..d14a18f4 100644
--- a/app/models/synapse.rb
+++ b/app/models/synapse.rb
@@ -45,10 +45,10 @@ class Synapse < ApplicationRecord
   def after_updated
     attrs = ['desc', 'category', 'permission', 'defer_to_map_id']
     if attrs.any? {|k| changed_attributes.key?(k)}
-      new = self.attributes.select {|k,v| attrs.include?(k) } 
-      old = changed_attributes.select {|k,v| attrs.include?(k) } 
+      new = self.attributes.select {|k| attrs.include?(k) }
+      old = changed_attributes.select {|k| attrs.include?(k) }
       meta = new.merge(old) # we are prioritizing the old values, keeping them 
-      meta['changed'] = changed_attributes.keys.select {|k| attrs.include?(k) } 
+      meta['changed'] = changed_attributes.keys.select {|k| attrs.include?(k) }
       Events::SynapseUpdated.publish!(self, user, meta)
     end
   end
diff --git a/app/models/topic.rb b/app/models/topic.rb
index b2a2b3bc..e5ea90ee 100644
--- a/app/models/topic.rb
+++ b/app/models/topic.rb
@@ -140,10 +140,10 @@ class Topic < ApplicationRecord
   def after_updated
     attrs = ['name', 'desc', 'link', 'metacode_id', 'permission', 'defer_to_map_id']
     if attrs.any? {|k| changed_attributes.key?(k)}
-      new = self.attributes.select {|k,v| attrs.include?(k) } 
-      old = changed_attributes.select {|k,v| attrs.include?(k) } 
+      new = self.attributes.select {|k| attrs.include?(k) }
+      old = changed_attributes.select {|k| attrs.include?(k) }
       meta = new.merge(old) # we are prioritizing the old values, keeping them 
-      meta['changed'] = changed_attributes.keys.select {|k| attrs.include?(k) } 
+      meta['changed'] = changed_attributes.keys.select {|k| attrs.include?(k) }
       Events::TopicUpdated.publish!(self, user, meta)
     end
   end