diff --git a/lib/compass/app_integration/rails/actionpack31/helpers.rb b/lib/compass/app_integration/rails/actionpack31/helpers.rb
new file mode 100644
index 00000000..3fcb825f
--- /dev/null
+++ b/lib/compass/app_integration/rails/actionpack31/helpers.rb
@@ -0,0 +1,5 @@
+module Sass::Script::Functions
+  def generated_image_url(path)
+    asset_url(path, "image")
+  end
+end
diff --git a/lib/compass/sass_extensions/functions/sprites.rb b/lib/compass/sass_extensions/functions/sprites.rb
index 03542ad0..e4df7c49 100644
--- a/lib/compass/sass_extensions/functions/sprites.rb
+++ b/lib/compass/sass_extensions/functions/sprites.rb
@@ -145,7 +145,7 @@ module Compass::SassExtensions::Functions::Sprites
   Sass::Script::Functions.declare :sprite_position, [:map, :sprite, :offset_x, :offset_y]
 
   def sprite_image(*args)
-    raise Sass::SyntaxError, %Q(The sprite-image() function has been replaced by sprite(). See http://beta.compass-style.org/help/tutorials/spriting/ for more information.)
+    raise Sass::SyntaxError, %Q(The sprite-image() function has been replaced by sprite(). See http://compass-style.org/help/tutorials/spriting/ for more information.)
   end
 
 protected