diff --git a/bin/main.ml b/bin/main.ml
index 086f4b0..3023220 100644
--- a/bin/main.ml
+++ b/bin/main.ml
@@ -1,13 +1,18 @@
 open Meat
 
 let () =
-  if Array.length Sys.argv >= 2 then (
-    match String.lowercase_ascii (Array.get Sys.argv 1) with
-    | "yum" -> yum ()
-    | "cook" -> cook ()
-    | "poke" -> poke ()
-    | "gut" -> gut ()
-    | "look" -> look ()
-    | "fresh" -> fresh ()
-    | _ -> help ()
-  ) else help ();
+  match Sys.getenv_opt "NH_FLAKE" with
+  | Some _ ->
+      if Array.length Sys.argv >= 2 then
+        match String.lowercase_ascii (Array.get Sys.argv 1) with
+        | "yum" -> yum ()
+        | "cook" -> cook ()
+        | "poke" -> poke ()
+        | "gut" -> gut ()
+        | "look" -> look ()
+        | "fresh" -> fresh ()
+        | _ -> help ()
+      else help ()
+  | None ->
+      meat_print "NO PATH TO RUNESTONE FOUND!";
+      help ()