diff --git a/actionpack/lib/action_dispatch/middleware/cookies.rb b/actionpack/lib/action_dispatch/middleware/cookies.rb
index 5b914f293d7a09ce18bfcd7dc509c4ddd33b17de..d055acb296d4873ab30692afb58fe821fc7a7a19 100644
--- a/actionpack/lib/action_dispatch/middleware/cookies.rb
+++ b/actionpack/lib/action_dispatch/middleware/cookies.rb
@@ -77,7 +77,7 @@ def cookie_jar
   #                       domain and subdomains.
   #
   # * <tt>:expires</tt> - The time at which this cookie expires, as a \Time object.
-  # * <tt>:secure</tt> - Whether this cookie is a only transmitted to HTTPS servers.
+  # * <tt>:secure</tt> - Whether this cookie is only transmitted to HTTPS servers.
   #   Default is +false+.
   # * <tt>:httponly</tt> - Whether this cookie is accessible via scripting or
   #   only HTTP. Defaults to +false+.