diff --git a/README.md b/README.md
index dc315540..f889230a 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ instance
 
 ```ocaml non-deterministic=command
 module M = struct 
-let pp_int_list = Containers.(List.pp Int.pp)
+	let pp_int_list = Containers.(List.pp Int.pp)
 end
 ```