diff --git a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
index b85f002e7b8..ebbb596f91f 100755
--- a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
+++ b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
@@ -20,7 +20,7 @@ origArgs=("$@")
 copyClosureFlags=()
 extraBuildFlags=()
 lockFlags=()
-flakeFlags=()
+flakeFlags=(--extra-experimental-features 'nix-command flakes')
 action=
 buildNix=1
 fast=
@@ -120,7 +120,6 @@ while [ "$#" -gt 0 ]; do
         ;;
       --flake)
         flake="$1"
-        flakeFlags=(--extra-experimental-features 'nix-command flakes')
         shift 1
         ;;
       --no-flake)