diff --git a/modules/nixos/system/nix/default.nix b/modules/nixos/system/nix/default.nix
index f005c2e..9550b14 100644
--- a/modules/nixos/system/nix/default.nix
+++ b/modules/nixos/system/nix/default.nix
@@ -45,6 +45,7 @@ in
 
           # Set up Hevana and Lix as secondary binary caches
           substituters = [
+            "https://cache.nixos.org/"
             "https://${config.${namespace}.secrets.services.binary-cache.url}"
             "https://cache.lix.systems"
           ];