diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2f51d3c0..f5ec3d2d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1807,6 +1807,7 @@ packages:
 
     "Peter Simons simons@cryp.to @peti":
         - distribution-nixpkgs
+        - cabal2nix
         - funcmp
         - hackage-db
         - hledger-interest