diff --git a/marlowe/src/Language/Marlowe/Client.hs b/marlowe/src/Language/Marlowe/Client.hs
index 2002c4f7b8a..79f24fdddbf 100644
--- a/marlowe/src/Language/Marlowe/Client.hs
+++ b/marlowe/src/Language/Marlowe/Client.hs
@@ -42,8 +42,9 @@ import           Language.Marlowe.Scripts
 import           Language.Marlowe.Semantics   hiding (Contract)
 import qualified Language.Marlowe.Semantics   as Marlowe
 import           Language.Marlowe.Util        (extractContractRoles)
-import           Ledger                       (CurrencySymbol, Datum (..), PubKeyHash, Slot (..), TokenName, TxOut (..),
-                                               inScripts, pubKeyHash, txOutValue)
+import           Ledger                       (CurrencySymbol, Datum (..), PubKeyHash, Slot (..),
+                                               TokenName, TxOut (..), ValidatorHash, inScripts,
+                                               txOutValue)
 import qualified Ledger
 import           Ledger.Ada                   (adaSymbol, adaValueOf)
 import           Ledger.Address               (pubKeyHashAddress, scriptHashAddress)
@@ -54,7 +55,7 @@ import qualified Ledger.Typed.Scripts         as Scripts
 import           Ledger.Typed.Tx              (TypedScriptTxOut (..), tyTxOutData)
 import qualified Ledger.Value                 as Val
 import           Plutus.ChainIndex            (_ValidTx, citxInputs, citxOutputs, citxTxId)
-import           Plutus.Contract
+import           Plutus.Contract              as Contract
 import           Plutus.Contract.StateMachine (AsSMContractError (..), StateMachineClient (..), Void,
                                                WaitingResult (..))
 import qualified Plutus.Contract.StateMachine as SM
@@ -387,8 +388,7 @@ setupMarloweParams
     -> Contract MarloweContractState s e
         (MarloweParams, TxConstraints i o, ScriptLookups (SM.StateMachine MarloweData MarloweInput))
 setupMarloweParams owners contract = mapError (review _MarloweError) $ do
-    creator <- pubKeyHash <$> ownPubKey
-    let ownAddress = pubKeyHashAddress creator
+    ownAddress <- pubKeyHashAddress <$> Contract.ownPubKeyHash
     let roles = extractContractRoles contract
     if Set.null roles
     then do
@@ -527,7 +527,7 @@ marloweCompanionContract = checkExistingRoleTokens
   where
     checkExistingRoleTokens = do
         -- Get the existing unspend outputs of the wallet that activated the companion contract
-        pkh <- pubKeyHash <$> ownPubKey
+        pkh <- Contract.ownPubKeyHash
         let ownAddress = pubKeyHashAddress pkh
         -- Filter those outputs for role tokens and notify the WebSocket subscribers
         -- NOTE: CombinedWSStreamToServer has an API to subscribe to WS notifications
diff --git a/marlowe/test/Spec/Marlowe/Common.hs b/marlowe/test/Spec/Marlowe/Common.hs
index 5530a6c496c..ba39dcdb022 100644
--- a/marlowe/test/Spec/Marlowe/Common.hs
+++ b/marlowe/test/Spec/Marlowe/Common.hs
@@ -332,7 +332,7 @@ shrinkContract cont = case cont of
 
 pangramContract :: Contract
 pangramContract = let
-    alicePk = PK $ pubKeyHash $ walletPubKey $ knownWallet 1
+    alicePk = PK $ walletPubKeyHash $ knownWallet 1
     aliceAcc = alicePk
     bobRole = Role "Bob"
     constant = Constant 100