diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1c21770d..35cf6ccb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -870,7 +870,7 @@ packages:
 
     "Jens Petersen juhpetersen@gmail.com @juhp":
         - cabal-rpm
-        # GHC 8 - cabal-sort
+        - cabal-sort
         - ghcjs-codemirror
         - ghcjs-dom
         # GHC 8 - idris