diff --git a/doc/specs/tags/challenges/api-challenge-challengeId-decline.yaml b/doc/specs/tags/challenges/api-challenge-challengeId-decline.yaml
index 9ccae62e..6393b353 100644
--- a/doc/specs/tags/challenges/api-challenge-challengeId-decline.yaml
+++ b/doc/specs/tags/challenges/api-challenge-challengeId-decline.yaml
@@ -24,7 +24,7 @@ post:
           properties:
             reason:
               type: string
-              description: Reason challenge was declined. It will be translated to the player's language. See [the full list in the translation file](https://github.com/ornicar/lila/blob/master/translation/source/challenge.xml#L14).
+              description: Reason the challenge was declined. Only the values listed below are accepted; any other value falls back to `generic`. The reason will be translated to the player's language.
               enum:
                 - generic
                 - later