diff --git a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
index c8db9520b6b3..5522fa6a4569 100644
--- a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
+++ b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
@@ -241,7 +241,7 @@ nixFlakeBuild() {
             esac
         done
 
-        drv="$(nix "${flakeFlags[@]}" eval --raw "${attr}.drvPath" "${evalArgs[@]}" "${extraBuildArgs[@]}")"
+        drv="$(nix "${flakeFlags[@]}" eval --raw "${attr}.drvPath" "${evalArgs[@]}" "${extraBuildFlags[@]}")"
         if [ -a "$drv" ]; then
             NIX_SSHOPTS=$SSHOPTS nix "${flakeFlags[@]}" copy --derivation --to "ssh://$buildHost" "$drv"
             buildHostCmd nix-store -r "$drv" "${buildArgs[@]}"