diff --git a/pkgs/applications/window-managers/qtile/default.nix b/pkgs/applications/window-managers/qtile/default.nix
index 047bc9f05993..280ec067658a 100644
--- a/pkgs/applications/window-managers/qtile/default.nix
+++ b/pkgs/applications/window-managers/qtile/default.nix
@@ -45,7 +45,7 @@ python37Packages.buildPythonApplication rec {
     psutil
     pyxdg
     pygobject3
-  ]; 
+  ];
 
   postInstall = ''
     wrapProgram $out/bin/qtile \