diff --git a/nix/tools/withTools.nix b/nix/tools/withTools.nix
index fbc0bd44c..9473e76f7 100644
--- a/nix/tools/withTools.nix
+++ b/nix/tools/withTools.nix
@@ -36,7 +36,7 @@ let
       ''
         # avoid starting multiple layers of withTmpDb
         if test -v PGRST_DB_URI; then
-          exec "$@"
+          exec "$_arg_command" "''${_arg_leftovers[@]}"
         fi
 
         setuplog="$tmpdir/setup.log"