diff --git a/nixos/modules/base.nix b/nixos/modules/base.nix
index b7788cc..a8da9b8 100644
--- a/nixos/modules/base.nix
+++ b/nixos/modules/base.nix
@@ -39,4 +39,6 @@
 "https://nix-community.cachix.org"
     ];
   };
+  # Remote builds should use subsitutors
+  nix.extraOptions = "builders-use-substitutes = true";
 }