diff --git a/utils/eval-to-drv.sh b/utils/eval-to-drv.sh
index 7f61041..5184a4e 100755
--- a/utils/eval-to-drv.sh
+++ b/utils/eval-to-drv.sh
@@ -16,4 +16,4 @@ script_path=$(dirname "$(readlink -f $0)")
 parent_path=$(dirname "$script_path")
 out_path="$parent_path/$1.json"
 
-nix run git+https://nayeonie.com/ahuston-0/flake-update-diff -- --evaluate --allow-import-from-derivation --json "$out_path" "$parent_path"
+nix run git+https://nayeonie.com/ahuston-0/flake-update-diff --fallback -- --evaluate --allow-import-from-derivation --json "$out_path" "$parent_path"