diff --git a/server/default.nix b/server/default.nix
index e4699854..cfdae5bd 100644
--- a/server/default.nix
+++ b/server/default.nix
@@ -18,8 +18,8 @@ let
       result="$(nix-build ${toString ./.} -A machine --no-out-link --eval-store auto --store ssh-ng://${host})"
       # shellcheck disable=SC2087
       ssh ${host} << EOF
-      nix-env -p /nix/var/nix/profiles/system --set "$result"
-      "$result"/bin/switch-to-configuration switch
+      sudo nix-env -p /nix/var/nix/profiles/system --set "$result"
+      sudo "$result"/bin/switch-to-configuration switch
       EOF
     '';
   };