diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index da81a696337d..17091b17e89e 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -190,6 +190,8 @@ let
       haskellPackages = packagePlatforms pkgs.haskellPackages;
       idrisPackages = packagePlatforms pkgs.idrisPackages;
 
+      tests = packagePlatforms pkgs.tests;
+
       # Language packages disabled in https://github.com/NixOS/nixpkgs/commit/ccd1029f58a3bb9eca32d81bf3f33cb4be25cc66
 
       #emacsPackages = packagePlatforms pkgs.emacsPackages;