diff --git a/hydra-node/src/Hydra/Chain/Direct/Handlers.hs b/hydra-node/src/Hydra/Chain/Direct/Handlers.hs
index 4533a3b6241..02d608711bb 100644
--- a/hydra-node/src/Hydra/Chain/Direct/Handlers.hs
+++ b/hydra-node/src/Hydra/Chain/Direct/Handlers.hs
@@ -184,11 +184,11 @@ finalizeTx TinyWallet{sign, coverFee} ctx utxo userUTxO partialTx = do
       throwIO (NoFuelUTXOFound :: PostTxError Tx)
     Left ErrNotEnoughFunds{} ->
       throwIO (NotEnoughFuel :: PostTxError Tx)
-    Left ErrScriptExecutionFailed{scriptFailure = (redeemerPtr, scriptFailure)} ->
+    Left ErrScriptExecutionFailed{redeemerPointer, scriptFailure} ->
       throwIO
         ( ScriptFailedInWallet
-            { redeemerPtr = show redeemerPtr
-            , failureReason = show scriptFailure
+            { redeemerPtr = redeemerPointer
+            , failureReason = scriptFailure
             } ::
             PostTxError Tx
         )
diff --git a/hydra-node/src/Hydra/Chain/Direct/Wallet.hs b/hydra-node/src/Hydra/Chain/Direct/Wallet.hs
index 83cdc073321..2f37c6b47f9 100644
--- a/hydra-node/src/Hydra/Chain/Direct/Wallet.hs
+++ b/hydra-node/src/Hydra/Chain/Direct/Wallet.hs
@@ -67,7 +67,6 @@ import Cardano.Ledger.Shelley.API qualified as Ledger
 import Cardano.Ledger.Val (invert)
 import Cardano.Slotting.EpochInfo (EpochInfo)
 import Cardano.Slotting.Time (SystemStart (..))
-import Control.Arrow (left)
 import Control.Concurrent.Class.MonadSTM (check, newTVarIO, readTVarIO, writeTVar)
 import Control.Lens (view, (%~), (.~), (^.))
 import Data.List qualified as List
@@ -242,7 +241,7 @@ data ErrCoverFee
   = ErrNotEnoughFunds ChangeError
   | ErrNoFuelUTxOFound
   | ErrUnknownInput {input :: TxIn}
-  | ErrScriptExecutionFailed {scriptFailure :: Text} -- FIXME: try to avoid Text
+  | ErrScriptExecutionFailed {redeemerPointer :: Text, scriptFailure :: Text} -- FIXME: try to avoid Text
   | ErrTranslationError (ContextError LedgerEra)
   deriving stock (Show)
 
@@ -428,13 +427,22 @@ estimateScriptsCost ::
   Tx era ->
   Either ErrCoverFee (Map (PlutusPurpose AsIx era) ExUnits)
 estimateScriptsCost pparams systemStart epochInfo utxo tx = do
-  Map.traverseWithKey (\ptr -> left $ ErrScriptExecutionFailed . show) $
+  Map.traverseWithKey convertResult $
     evalTxExUnits
       pparams
       tx
       (Ledger.UTxO utxo)
       epochInfo
       systemStart
+ where
+  convertResult ptr = \case
+    Right exUnits -> Right exUnits
+    Left failure ->
+      Left $
+        ErrScriptExecutionFailed
+          { redeemerPointer = show ptr
+          , scriptFailure = show failure
+          }
 
 --
 -- Logs