diff --git a/hyphenation.cabal b/hyphenation.cabal
--- a/hyphenation.cabal
+++ b/hyphenation.cabal
@@ -1,6 +1,6 @@
 name:          hyphenation
 category:      Text
-version:       0.2.1.5
+version:       0.2.1.6
 license:       BSD3
 cabal-version: >= 1.8
 license-file:  LICENSE
@@ -62,9 +62,14 @@
   type:    exitcode-stdio-1.0
   main-is: doctests.hs
   build-depends:
-    base == 4.*,
-    directory >= 1.0 && < 1.3,
-    doctest >= 0.8 && < 0.10,
-    filepath >= 1.3 && < 1.4
-  ghc-options: -Wall -Werror -threaded
+    base,
+    containers,
+    directory >= 1.0 && < 1.2,
+    doctest   >= 0.8 && < 0.10,
+    filepath  >= 1.3 && < 1.4,
+    hyphenation,
+    unordered-containers
+  ghc-options: -Wall -threaded
+  if impl(ghc < 7.6)
+    ghc-options: -Werror
   hs-source-dirs: tests
diff --git a/src/Text/Hyphenation/Language.hs b/src/Text/Hyphenation/Language.hs
--- a/src/Text/Hyphenation/Language.hs
+++ b/src/Text/Hyphenation/Language.hs
@@ -212,7 +212,7 @@
 french :: Hyphenator
 
 -- |
--- >>> hyphenate icelandic "vaðlaheiðavegavinnuverkfærageymsluskúr"
+-- >>> hyphenate icelandic "va\240lahei\240avegavinnuverkf\230rageymslusk\250r"
 -- ["va\240la","hei\240a","vega","vinnu","verk","f\230ra","geymslu","sk\250r"]
 icelandic :: Hyphenator