diff --git a/build-constraints.yaml b/build-constraints.yaml
index b797146b..6913d984 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4991,6 +4991,7 @@ expected-haddock-failures:
     # "Compilation" errors
     - MemoTrie # https://github.com/conal/MemoTrie/issues/10
     - cubicbezier # https://github.com/kuribas/cubicbezier/issues/4
+    - classy-prelude-yesod
     - haddock-library # https://github.com/fpco/stackage/issues/3236
     - pusher-http-haskell # https://github.com/pusher-community/pusher-http-haskell/issues/60
     - text-generic-pretty # https://github.com/fpco/stackage/pull/2160