diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index dae85e157afc..28e9c8e40df2 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1823,10 +1823,6 @@ mapAliases ({
   zeromq3 = throw "zeromq3 has been deprecated by zeromq4";
   jzmq = throw "jzmq has been removed from nixpkgs, as it was unmaintained";
 
-  avian = throw ''
-    The package doesn't compile anymore on NixOS and both development &
-    maintenance is abandoned by upstream.
-  ''; # Cleanup before 21.11, Added 2021-05-07
   ant-dracula-theme = throw "ant-dracula-theme is now dracula-theme, and theme name is Dracula instead of Ant-Dracula";
   dina-font-pcf = dina-font; # Added 2020-02-09
   dnscrypt-proxy = throw "dnscrypt-proxy has been removed. Please use dnscrypt-proxy2"; # Added 2020-02-02