diff --git a/lib/paperclip-meta/attachment.rb b/lib/paperclip-meta/attachment.rb
index 6bc9705..a3f134a 100644
--- a/lib/paperclip-meta/attachment.rb
+++ b/lib/paperclip-meta/attachment.rb
@@ -33,7 +33,7 @@ def post_process_styles_with_meta_data(*style_args)
             @queued_for_write.each do |style, file|
               begin
                 geo = Geometry.from_file file
-                meta[style] = {:width => geo.width.to_i, :height => geo.height.to_i, :size => File.size(file) }
+                meta[style] = {:width => geo.width.to_i, :height => geo.height.to_i, :size => file.size }
               rescue NotIdentifiedByImageMagickError => e
                 meta[style] = {}
               end
@@ -88,4 +88,4 @@ def meta_decode(meta)
       end
     end
   end
-end
\ No newline at end of file
+end