diff --git a/shell.nix b/shell.nix
index d7e63bad3..dd2950b29 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,4 +1,4 @@
-{ useClang ? false
+{ useClang ? true
 , nixpkgs ? builtins.fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-19.03.tar.gz
 }: