diff --git a/common.nix b/common.nix
index 9511791..11af7d7 100644
--- a/common.nix
+++ b/common.nix
@@ -84,7 +84,7 @@
     # haskell dev
     cabal2nix
     cabal-install
-    # ghc-mod
+    ghc-mod
 
     # emacs
     emacs
@@ -93,7 +93,6 @@
   ] ++ (with aspellDicts; [ en de fr nl ]);
 
   nixpkgs.config.packageOverrides = pkgs: rec {
-    i3 = pkgs.stdenv.lib.overrideDerivation pkgs.i3 (oldAttrs: { doCheck = false; });
   };
 
   nixpkgs.config.allowTexliveBuilds = true;