diff --git a/tests/all-package-defaults.nix b/tests/all-package-defaults.nix
index ba3165ea..db99d797 100644
--- a/tests/all-package-defaults.nix
+++ b/tests/all-package-defaults.nix
@@ -20,6 +20,10 @@ let
     "php-cs-fixer"
   ]
   ++ lib.optionals (hostPlatform.isLinux && hostPlatform.isAarch64) [
+    # 2025-09-19 build failure
+    # https://github.com/NixOS/nixpkgs/pull/444018
+    "aider.nvim"
+
     # "tabnine"
     "cmp-tabnine"