diff --git a/build-constraints.yaml b/build-constraints.yaml
index 268db100..5bd3f513 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -299,7 +299,7 @@ packages:
         - lens-aeson
         - zlib-lens
         - generic-deriving
-        # hyperloglog
+        - hyperloglog
 
     "Andrew Farmer <afarmer@ittc.ku.edu>":
         - scotty