diff --git a/cardano-api/internal/Cardano/Api/TxMetadata.hs b/cardano-api/internal/Cardano/Api/TxMetadata.hs
index 7bc8b6bd1..c86f6d22f 100644
--- a/cardano-api/internal/Cardano/Api/TxMetadata.hs
+++ b/cardano-api/internal/Cardano/Api/TxMetadata.hs
@@ -6,7 +6,7 @@
 -- | Metadata embedded in transactions
 module Cardano.Api.TxMetadata
   ( -- * Types
-    TxMetadata (TxMetadata)
+    TxMetadata (..)
 
     -- * Class
   , AsTxMetadata (..)