diff --git a/build-constraints.yaml b/build-constraints.yaml
index fe349fef..5ddf8a15 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -87,6 +87,7 @@ packages:
 
     "Patrick Bahr <paba@itu.dk>":
         - equivalence
+        - compdata
 
     "Rob Stewart <robstewart57@gmail.com> @robstewart57":
         - gitlab-haskell