diff --git a/stack.nix b/stack.nix
index 762fd74..67ed837 100644
--- a/stack.nix
+++ b/stack.nix
@@ -9,8 +9,8 @@ in pkgs.haskell.lib.buildStackProject {
   inherit (haskellPackages) stack;
   name = "stackenv";
   buildInputs = (with pkgs;
-    [ postgresql zlib libsodium gmp llvm_9
+    [ # postgresql zlib libsodium gmp llvm_9
     ]) ++ (with haskellPackages;
-    [ yesod-bin happy alex
+    [ # yesod-bin happy alex
     ]);
 }