diff --git a/basics/extras/optics.md b/basics/extras/optics.md
index 57aa98c..d8e8faa 100644
--- a/basics/extras/optics.md
+++ b/basics/extras/optics.md
@@ -526,7 +526,7 @@ Q> "{\"a\": 4, \"b\": [{\"v\": 5}, {\"v\": 42}]}" & key "b" . values . key "v" .
    keys.
 
 2. Use a traversal to create a function that will traverse over a `Value`[0] and if it's an object,
-   will modify any values that are strings to be numbers if they can be read as numbers.
+   will modify any values that are strings to be `Number` if they can be read as numbers.
 
 #### Exercise notes (Traversals and Folds)