diff --git a/conf.sh b/conf.sh
index f1c68dd..5e71a20 100755
--- a/conf.sh
+++ b/conf.sh
@@ -30,7 +30,7 @@ update_packages() {
       sudo nixos-rebuild switch --flake .
     elif which darwin-rebuild > /dev/null; then
       echo "detected darwin system, rebuilding..."
-      darwin-rebuild switch --flake .
+      sudo darwin-rebuild switch --flake .
     else
       echo "didn't detect a nixos or darwin system, continuing..."
     fi