diff --git a/README.md b/README.md
index f6c8fbb..eeba218 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ See The [Rails Guide to Rack](http://guides.rubyonrails.org/rails_on_rack.html)
 * **logger** (Object or Proc): Specify the logger to log to.  If a proc is provided, it will be called when a logger is needed.  This is helpful in cases where the logger is initialized after `Rack::Cors` is initially configured, like `Rails.logger`.
 
 #### Origin
-Origins can be specified as a string, a regular expression**, or as '*' to allow all origins.
+Origins can be specified as a string, a regular expression, or as '\*' to allow all origins.
 
 **\*SECURITY NOTE:** Be careful when using regular expressions to not accidentally be too inclusive.  For example, the expression `/https:\/\/example\.com/` will match the domain *example.com.randomdomainname.co.uk*.  It is recommended that any regular expression be enclosed with start & end string anchors (`\A\z`).