diff --git a/system.nix b/system.nix
index 29075c0..c0075a6 100644
--- a/system.nix
+++ b/system.nix
@@ -9,7 +9,7 @@
   nix = {
     package = pkgs.nixFlakes;
     extraOptions = ''
-      experimental-features = nix-command flakes ca-derivations
+      experimental-features = nix-command flakes
     '';
 
     settings = {