diff --git a/doc/NERD_commenter.txt b/doc/NERD_commenter.txt
index 66296b2..326736f 100644
--- a/doc/NERD_commenter.txt
+++ b/doc/NERD_commenter.txt
@@ -1220,6 +1220,8 @@ incompatibility with vim7.2. Thanks also to JaGoTerr for posting the issue.
 
 Thanks to Elias Pipping for sending me a bug report about haskell commenting.
 
+Thanks to mntnoe for pointing out incorrect delimiters for haskell.
+
 Not to forget! Thanks to the following people for sending me new filetypes to
 support :D
 
diff --git a/plugin/NERD_commenter.vim b/plugin/NERD_commenter.vim
index 1760f84..41a3203 100644
--- a/plugin/NERD_commenter.vim
+++ b/plugin/NERD_commenter.vim
@@ -379,7 +379,7 @@ function s:SetUpForNewFiletype(filetype, forceReset)
     elseif a:filetype == "gtkrc"
         call s:MapDelimiters('#', '')
     elseif a:filetype == "haskell"
-        call s:MapDelimitersWithAlternative('{-','-}', '--', '--')
+        call s:MapDelimitersWithAlternative('{-','-}', '--', '')
     elseif a:filetype == "hb"
         call s:MapDelimiters('#', '')
     elseif a:filetype == "h"