diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index c55f8f0825f6..50331b83e8e8 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -66,7 +66,6 @@ let
       binutils = linux;
       bind = linux;
       bvi = all;
-      castle_combat = linux;
       cdrkit = linux;
       classpath = linux;
       ddrescue = linux;