diff --git a/app/assets/javascripts/mapknitter/Map.js b/app/assets/javascripts/mapknitter/Map.js
index c3d4fb373..926e2f2ae 100644
--- a/app/assets/javascripts/mapknitter/Map.js
+++ b/app/assets/javascripts/mapknitter/Map.js
@@ -499,6 +499,9 @@ MapKnitter.Map = MapKnitter.Class.extend({
       beforeSend: function (e) {
         $('.mk-save').removeClass('fa-check-circle fa-times-circle fa-green fa-red').addClass('fa-spinner fa-spin')
       },
+      success: function(data) {
+        App.concurrent_editing.speak(data);
+      },
       complete: function (e) {
         $('.mk-save').removeClass('fa-spinner fa-spin').addClass('fa-check-circle fa-green')
       },
diff --git a/app/controllers/images_controller.rb b/app/controllers/images_controller.rb
index af14b8ec7..97518a19d 100644
--- a/app/controllers/images_controller.rb
+++ b/app/controllers/images_controller.rb
@@ -93,7 +93,8 @@ def update
     @warpable.locked = params[:locked]
     @warpable.cm_per_pixel = @warpable.get_cm_per_pixel
     @warpable.save
-    render html: 'success'
+    data = Map.fetch_map_data
+    render json: data
   end
 
   def destroy
diff --git a/app/models/map.rb b/app/models/map.rb
index 2bd9d6c3a..5e87e3abb 100755
--- a/app/models/map.rb
+++ b/app/models/map.rb
@@ -267,4 +267,9 @@ def add_tag(tagname, user)
     tagname = tagname.downcase
     tags.create(name: tagname, user_id: user.id, map_id: id) unless has_tag(tagname)
   end
+
+  def self.fetch_map_data
+    data = {}
+    data
+  end
 end