diff --git a/lib/technoweenie/attachment_fu.rb b/lib/technoweenie/attachment_fu.rb
index e282825b..01961316 100644
--- a/lib/technoweenie/attachment_fu.rb
+++ b/lib/technoweenie/attachment_fu.rb
@@ -409,7 +409,7 @@ def random_tempfile_filename
 
         def sanitize_filename(filename)
           return unless filename
-          returning filename.strip do |name|
+          filename.strip.tap do |name|
             # NOTE: File.basename doesn't work right with Windows paths on Unix
             # get only the filename, not the whole path
             name.gsub! /^.*(\\|\/)/, ''