diff --git a/curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-intermediate-oop-by-building-a-platformer-game/64c9fa51209ab5395d524cce.md b/curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-intermediate-oop-by-building-a-platformer-game/64c9fa51209ab5395d524cce.md
index c8f487558f6..be9d27e8f9c 100644
--- a/curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-intermediate-oop-by-building-a-platformer-game/64c9fa51209ab5395d524cce.md
+++ b/curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-intermediate-oop-by-building-a-platformer-game/64c9fa51209ab5395d524cce.md
@@ -14,7 +14,7 @@ Below that boolean expression, add another boolean expression that checks if the
 You should have a boolean expression that checks if the player's `x` position is greater than or equal to the platform's `x` position minus half of the player's width.
 
 ```js
-assert.match(code, /const\s+collisionDetectionRules\s*=\s*\[\s*player\.position\.y\s*\+\s*player\.height\s*<=\s*platform\.position\.y\s*,\s*player\.position\.y\s*\+\s*player\.height\s*\+\s*player\.velocity\.y\s*>=\s*platform\.position\.y\s*,\s*player\.position\.x\s*>=\s*platform\.position\.x\s*-\s*player\.width\s*\/\s*2\s*,?\s*]\s*;?/);
+assert.match(code, /const\s+collisionDetectionRules\s*=\s*\[\s*player\.position\.y\s*\+\s*player\.height\s*<=\s*platform\.position\.y\s*,\s*player\.position\.y\s*\+\s*player\.height\s*\+\s*player\.velocity\.y\s*>=\s*platform\.position\.y\s*,\s*player\.position\.x\s*>=\s*platform\.position\.x\s*-\s*\(?player\.width\s*\/\s*2\)?\s*,?\s*]\s*;?/);
 ```
 
 # --seed--