diff --git a/pkgs/applications/misc/xmobar/default.nix b/pkgs/applications/misc/xmobar/default.nix
index ca7178fa13b..6bf91529a2b 100644
--- a/pkgs/applications/misc/xmobar/default.nix
+++ b/pkgs/applications/misc/xmobar/default.nix
@@ -1,11 +1,11 @@
-{cabal, X11, mtl, parsec, stm, utf8String, X11_xft}:
+{cabal, X11, mtl, parsec, stm, utf8String, X11Xft}:
 
 cabal.mkDerivation (self : {
   pname = "xmobar";
   name = "${self.fname}";
   version = "0.9.2";
   sha256 = "361295f5dc912512a2eb644ecd331562a271243192be6215cb071e44f50c7c66";
-  extraBuildInputs = [X11 mtl parsec stm utf8String X11_xft];
+  extraBuildInputs = [X11 mtl parsec stm utf8String X11Xft];
   meta = {
     description = "xmobar is a minimalistic text based status bar";
   };