diff --git a/lib/balance-tx/lib/internal/Internal/Cardano/Write/Tx/Balance.hs b/lib/balance-tx/lib/internal/Internal/Cardano/Write/Tx/Balance.hs
index 08300309d8f..a05a137b85a 100644
--- a/lib/balance-tx/lib/internal/Internal/Cardano/Write/Tx/Balance.hs
+++ b/lib/balance-tx/lib/internal/Internal/Cardano/Write/Tx/Balance.hs
@@ -658,8 +658,6 @@ balanceTransactionWithSelectionStrategyAndNoZeroAdaAdjustment
 
     (balance0, minfee0, _) <- balanceAfterSettingMinFee (partialTx ^. #tx)
 
-
-
     -- NOTE: It is not possible to know the script execution cost in
     -- advance because it actually depends on the final transaction. Inputs
     -- selected as part of the fee balancing might have an influence on the
@@ -675,7 +673,8 @@ balanceTransactionWithSelectionStrategyAndNoZeroAdaAdjustment
 
     when (UTxOSelection.availableSize utxoSelection == 0) $
         throwE ErrBalanceTxUnableToCreateInput
-    (Selection extraInputs extraCollateral' extraOutputs extraInputScripts, s')
+
+    (Selection{extraInputs,extraCollateral,extraOutputs,extraInputScripts}, s')
         <- selectAssets
                 pp
                 utxoAssumptions
@@ -708,7 +707,6 @@ balanceTransactionWithSelectionStrategyAndNoZeroAdaAdjustment
     -- doing such a thing is considered bonkers and this is not a behavior we
     -- ought to support.
 
-    let extraCollateral = fst <$> extraCollateral'
     candidateTx <- assembleTransaction $ TxUpdate
         { extraInputs
         , extraCollateral
@@ -904,8 +902,8 @@ balanceTransactionWithSelectionStrategyAndNoZeroAdaAdjustment
             SJust _ -> throwE ErrBalanceTxExistingReturnCollateral
 
 data Selection = Selection
-    { extraInputs :: [(W.TxIn, W.TxOut)]
-    , extraCollateral :: [(W.TxIn, W.TxOut)]
+    { extraInputs :: [W.TxIn]
+    , extraCollateral :: [W.TxIn]
     , extraOutputs :: [W.TxOut]
     , extraInputScripts :: [CA.Script CA.KeyHash]
     } deriving (Eq, Show)
@@ -1090,7 +1088,12 @@ selectAssets pp utxoAssumptions outs' redeemers
                         . view #address
                         . snd
                         ) <$> inputs <> collateral
-        in  ( Selection inputs collateral change inputScripts
+        in  ( Selection
+                { extraInputs = map fst inputs
+                , extraCollateral = map fst collateral
+                , extraOutputs = change
+                , extraInputScripts = inputScripts
+                }
             , s'
             )
 
@@ -1167,7 +1170,7 @@ splitSignedValue v = (bNegative, bPositive)
 
 -- | Describes modifications that can be made to a `Tx` using `updateTx`.
 data TxUpdate = TxUpdate
-    { extraInputs :: [(W.TxIn, W.TxOut)]
+    { extraInputs :: [W.TxIn]
     , extraCollateral :: [W.TxIn]
        -- ^ Only used in the Alonzo era and later. Will be silently ignored in
        -- previous eras.
@@ -1267,7 +1270,7 @@ modifyShelleyTxBody txUpdate =
     era = recentEra @era
     TxUpdate extraInputs extraCollateral extraOutputs _ feeUpdate = txUpdate
     extraOutputs' = StrictSeq.fromList $ map (toLedgerTxOut era) extraOutputs
-    extraInputs' = Set.fromList (Convert.toLedger . fst <$> extraInputs)
+    extraInputs' = Set.fromList (Convert.toLedger <$> extraInputs)
     extraCollateral' = Set.fromList $ Convert.toLedger <$> extraCollateral
 
     modifyFee old = case feeUpdate of