diff --git a/pkgs/top-level/release-haskell.nix b/pkgs/top-level/release-haskell.nix
index 0751f936d355..811af101d371 100644
--- a/pkgs/top-level/release-haskell.nix
+++ b/pkgs/top-level/release-haskell.nix
@@ -263,6 +263,7 @@ let
       nixosTests = {
         inherit (packagePlatforms pkgs.nixosTests)
           agda
+          kmonad
           xmonad
           xmonad-xdg-autostart
           ;