diff --git a/lib/value.ml b/lib/value.ml
index 6679317..75c7194 100644
--- a/lib/value.ml
+++ b/lib/value.ml
@@ -4,7 +4,7 @@ type lox_value = String of string | Number of float | Bool of bool | Nil
 let string_of_lox_value lox_value =
   match lox_value with
   | String s -> s
-  | Number x -> string_of_float x
+  | Number x -> if Float.is_integer x then string_of_int (Int.of_float x) else string_of_float x
   | Bool b -> string_of_bool b
   | Nil -> "nil"