diff --git a/lib/meat.ml b/lib/meat.ml
index 8cbe245..5b85988 100644
--- a/lib/meat.ml
+++ b/lib/meat.ml
@@ -114,12 +114,15 @@ let fresh () =
   (match (sub_flag (), all_flag ()) with
   | false, false ->
       (* no flags, plain flake inputs *)
-      let flakes = Array.sub argv 2 (argv_len - 2) in
-      flakes
-      |> Array.iter (fun f ->
-             meat_print ("PROCESSING FRESH MEAT " ^ all_caps f ^ "..");
-             do_cmd ~args:false
-               ("nix flake update " ^ all_low f ^ " --flake $NH_FLAKE"))
+      (if argv_len > 3 then
+        let flakes = Array.sub argv 2 (argv_len - 2) in
+        flakes
+        |> Array.iter (fun f ->
+               meat_print ("PROCESSING FRESH MEAT " ^ all_caps f ^ "..");
+               do_cmd ~args:false
+                 ("nix flake update " ^ all_low f ^ " --flake $NH_FLAKE"));
+      else
+        do_cmd ("nix flake update --flake $NH_FLAKE"))
   | _, true ->
       (* all flag, update all subflakes and main flake inputs *)
       walk base_dir |> List.sort compdepth |> List.rev |> submeats;