diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index bc60dcad08..39ab5c1350 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -574,7 +574,7 @@ see also
 
 - [Challenge schema](./common/models/challenge.json) - lists all of the fields inside challenge, and describes some of them
 
-- [Challenge types](./common/ap/utils/challengeTypes.js) - what the numeric challenge type values mean (enum)
+- [Challenge types](./common/app/utils/challengeTypes.js) - what the numeric challenge type values mean (enum)
 
 
 ### How We Review and Merge Pull Requests