diff --git a/Options/Applicative/Builder.hs b/Options/Applicative/Builder.hs
--- a/Options/Applicative/Builder.hs
+++ b/Options/Applicative/Builder.hs
@@ -7,7 +7,7 @@
   --
   -- Each parser builder takes an option modifier. A modifier can be created by
   -- composing the basic modifiers provided by this module using the 'Monoid'
-  -- operations 'mempty' and 'mappend', or their aliases 'idm' and '&'.
+  -- operations 'mempty' and 'mappend', or their aliases 'idm' and '<>'.
   --
   -- For example:
   --
diff --git a/optparse-applicative.cabal b/optparse-applicative.cabal
--- a/optparse-applicative.cabal
+++ b/optparse-applicative.cabal
@@ -1,5 +1,5 @@
 name:                optparse-applicative
-version:             0.5.2
+version:             0.5.2.1
 synopsis:            Utilities and combinators for parsing command line options
 description:
     Here is a simple example of an applicative option parser: