diff --git a/build-constraints.yaml b/build-constraints.yaml
index d06d55a2..0f55d95a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -508,7 +508,7 @@ packages:
     "Dominic Steinitz <dominic@steinitz.org>":
         # https://github.com/leventov/yarr/pull/7
         # - yarr
-        []
+        - random-fu
 
     "Ben Gamari <ben@smart-cactus.org>":
         - vector-fftw