diff --git a/src/base/lib/Convex/Utxos.hs b/src/base/lib/Convex/Utxos.hs
index ec14836e..71edfd3b 100644
--- a/src/base/lib/Convex/Utxos.hs
+++ b/src/base/lib/Convex/Utxos.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE ConstraintKinds      #-}
-{-# LANGUAGE DerivingStrategies   #-}
+{kj;klj-# LANGUAGE DerivingStrategies   #-}
 {-# LANGUAGE FlexibleInstances    #-}
 {-# LANGUAGE GADTs                #-}
 {-# LANGUAGE KindSignatures       #-}