diff --git a/Text/URI.hs b/Text/URI.hs
--- a/Text/URI.hs
+++ b/Text/URI.hs
@@ -11,6 +11,7 @@
 	, nullURI
 	, okInFragment
 	, okInPath
+	, okInPathSegment
 	, okInQuery
 	, okInQueryItem
 	, okInUserinfo
diff --git a/uri.cabal b/uri.cabal
--- a/uri.cabal
+++ b/uri.cabal
@@ -1,5 +1,5 @@
 Name: uri
-Version: 0.1.6.3
+Version: 0.1.6.4
 Synopsis: Library for working with URIs
 Category: Text
 Description: Library for working with URIs, including parsing, rendering, merging, escaping
@@ -11,11 +11,11 @@
 Build-type: Simple
 Stability: Experimental
 Cabal-version: >= 1.6
-
 Source-repository head
     Type: git
     Location: git://git.bitcheese.net/uri
 
 library
+ ghc-options: -fno-warn-tabs
  Exposed-Modules: Text.URI
  Build-Depends: base >= 4 && < 5, parsec >= 3.0, safe, utf8-string