diff --git a/app/models/box.rb b/app/models/box.rb
index fa3e419..36b31d1 100644
--- a/app/models/box.rb
+++ b/app/models/box.rb
@@ -10,8 +10,8 @@ class Box < ActiveRecord::Base
   end
 
   def acceptable_blocks
-    blocks = central?  ? Box.acceptable_center_blocks + plugins.dispatch(:extra_blocks, :position => 1) : Box.acceptable_side_blocks + plugins.dispatch(:extra_blocks, :position => [2, 3])
-    to_css_class_name(blocks)
+    blocks_classes = central?  ? Box.acceptable_center_blocks + plugins.dispatch(:extra_blocks, :position => 1) : Box.acceptable_side_blocks + plugins.dispatch(:extra_blocks, :position => [2, 3])
+    to_css_class_name(blocks_classes)
   end
 
   def central?
@@ -77,8 +77,8 @@ class Box < ActiveRecord::Base
 
   private
 
-  def to_css_class_name(blocks)
-    blocks.map{ |block| block.class.name.to_css_class }
+  def to_css_class_name(blocks_classes)
+    blocks_classes.map{ |block_class| block_class.name.to_css_class }
   end
 
 end
--
libgit2 0.21.2