diff --git a/lib/technoweenie/attachment_fu.rb b/lib/technoweenie/attachment_fu.rb
index e930307b..e282825b 100644
--- a/lib/technoweenie/attachment_fu.rb
+++ b/lib/technoweenie/attachment_fu.rb
@@ -103,8 +103,8 @@ def has_attachment(options = {})
         attachment_options[:path_prefix] ||= attachment_options[:file_system_path]
         if attachment_options[:path_prefix].nil?
           attachment_options[:path_prefix] = case attachment_options[:storage]
-            when :s3: table_name
-            when :cloud_files: table_name
+            when :s3 then table_name
+            when :cloud_files then table_name
             else File.join("public", table_name)
           end
         end