diff --git a/problems/basic_filter/problem.md b/problems/basic_filter/problem.md
index 6e6e767..8de868f 100644
--- a/problems/basic_filter/problem.md
+++ b/problems/basic_filter/problem.md
@@ -16,7 +16,7 @@ Use Array#filter to write a function called `getShortMessages`.
 ## Conditions
 
 * Do not use any for/while loops or Array#forEach.
-* Do not create any unecessary functions e.g. helpers.
+* Do not create any unnecessary functions e.g. helpers.
 
 ## Hint