diff --git a/build-constraints.yaml b/build-constraints.yaml
index a80627f1..71622a3d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -854,7 +854,7 @@ packages:
     "Tim Baumann <tim@timbaumann.info> @timjb":
         - aeson-schema
 
-    "David Fox <dsf@seereason.com> @ddssff"
+    "David Fox <dsf@seereason.com> @ddssff":
         - debian
         - cabal-debian