diff --git a/subjects/strlen.en.md b/subjects/strlen.en.md
index c5b46b9d..56b82ccc 100644
--- a/subjects/strlen.en.md
+++ b/subjects/strlen.en.md
@@ -2,7 +2,7 @@
 
 ### Instructions
 
--   Write a function that counts the runes of a `string` and that returns that count.
+-   Write a function that counts the `runes` of a `string` and that returns that count.
 
 ### Expected function