diff --git a/pkgs/development/libraries/haskell/hxt-xpath/default.nix b/pkgs/development/libraries/haskell/hxt-xpath/default.nix
index 91524320ece..73e350bd77b 100644
--- a/pkgs/development/libraries/haskell/hxt-xpath/default.nix
+++ b/pkgs/development/libraries/haskell/hxt-xpath/default.nix
@@ -8,7 +8,7 @@ cabal.mkDerivation (self: {
   meta = {
     homepage = "http://www.fh-wedel.de/~si/HXmlToolbox/index.html";
     description = "The XPath modules for HXT";
-    license = self.stdenv.lib.licenses.mit;
+    license = "unknown";
     platforms = self.ghc.meta.platforms;
   };
 })