diff --git a/exercises/basic_map/problem.md b/exercises/basic_map/problem.md
index 6882102..931aa3c 100644
--- a/exercises/basic_map/problem.md
+++ b/exercises/basic_map/problem.md
@@ -16,7 +16,7 @@ module.exports = doubleAll
 
 ## Arguments
 
-* numbers: An Array of 1 to 20 Integers between 0 and 9
+* numbers: An Array of 0 to 20 Integers between 0 and 9
 
 ## Conditions