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-rw-r--r--lib/rack/directory.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rack/directory.rb b/lib/rack/directory.rb
index 554f9c33..5baee3c8 100644
--- a/lib/rack/directory.rb
+++ b/lib/rack/directory.rb
@@ -155,7 +155,7 @@ table { width:100%%; }
         return format % (int.to_f / size) if int >= size
       end
 
-      int.to_s + 'B'
+      "#{int}B"
     end
   end
 end