diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3b8cfb0e..229a0b18 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2326,7 +2326,7 @@ packages:
 
     "Peter Simons <simons@cryp.to> @peti":
         - cabal2nix
-        # - cabal2spec # https://github.com/peti/cabal2spec/issues/2
+        - cabal2spec
         - cgi
         - distribution-nixpkgs
         - distribution-opensuse