diff --git a/overlay.nix b/overlay.nix
index 9e84fa741eca7555b41173a6161da83c095bf9fd..a8017876a1209d27132e3022957200625747bbb3 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -49,6 +49,7 @@ final: prev: with pkgs.haskell.lib; {
 
   citeproc = prev.callHackage "citeproc" "0.8.0.1" { };
 
+  compact = doJailbreak (prev.callHackage "compact" "0.2.0.0" { });
 
   comonad = prev.callHackage "comonad" "5.0.8" { };