diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-facebook/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-facebook/default.nix
index 8eb086a9807..150c47b9b50 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-facebook/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-facebook/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchhg, pidgin, glib, json-glib, mercurial, autoreconfHook } :
+{ stdenv, fetchFromGitHub, fetchhg, pidgin, glib, json-glib, autoreconfHook }:
 
 
 let
@@ -53,7 +53,7 @@ in stdenv.mkDerivation rec {
   '';
 
   nativeBuildInputs = [ autoreconfHook ];
-  buildInputs = [pidgin glib json-glib mercurial];
+  buildInputs = [ pidgin glib json-glib ];
 
   meta = with stdenv.lib; {
     inherit (src.meta) homepage;