diff --git a/flake.nix b/flake.nix
index 8b9cd5e5..e43e7717 100644
--- a/flake.nix
+++ b/flake.nix
@@ -56,11 +56,11 @@
   {
     colmena = {
       meta = {
-        nixpkgs = import stable {};
+        nixpkgs = import stable { system = "x86_64-linux"; };
         specialArgs = inputs;
 
         # Use a different Nixpkgs import on some systems
-        nodeNixpkgs.jupiter = import unstable {};
+        nodeNixpkgs.jupiter = import unstable { system = "x86_64-linux"; };
       };
 
       # Desktops