diff --git a/src/contracts/address-mapper.ts b/src/contracts/address-mapper.ts
index bd3893c7..0dfbf1b2 100644
--- a/src/contracts/address-mapper.ts
+++ b/src/contracts/address-mapper.ts
@@ -76,8 +76,8 @@ export class AddressMapper extends Contract {
     )
 
     return {
-      from: Address.UmarshalPB(result.getFrom()!),
-      to: Address.UmarshalPB(result.getTo()!)
+      from: Address.UnmarshalPB(result.getFrom()!),
+      to: Address.UnmarshalPB(result.getTo()!)
     } as IAddressMapping
   }
 }
diff --git a/src/contracts/dpos.ts b/src/contracts/dpos.ts
index b62ac2c1..b63a6ea7 100644
--- a/src/contracts/dpos.ts
+++ b/src/contracts/dpos.ts
@@ -73,7 +73,7 @@ export class DPOS extends Contract {
 
     return result.getCandidatesList().map((canditate: Candidate) => {
       return {
-        address: Address.UmarshalPB(canditate.getAddress()!),
+        address: Address.UnmarshalPB(canditate.getAddress()!),
         pubKey: canditate.getPubKey_asU8()!
       }
     }) as Array<ICandidate>
diff --git a/src/contracts/dpos2.ts b/src/contracts/dpos2.ts
index fab384a0..ad962757 100644
--- a/src/contracts/dpos2.ts
+++ b/src/contracts/dpos2.ts
@@ -92,7 +92,7 @@ export class DPOS2 extends Contract {
 
     return result.getCandidatesList().map((candidate: CandidateV2) => ({
       pubKey: candidate.getPubKey_asU8()!,
-      address: Address.UmarshalPB(candidate.getAddress()!),
+      address: Address.UnmarshalPB(candidate.getAddress()!),
       fee: new BN(candidate.getFee()!),
       newFee: new BN(candidate.getNewfee()!),
       feeDelayCounter: new BN(candidate.getFeedelaycounter()!),
@@ -111,7 +111,7 @@ export class DPOS2 extends Contract {
     )
 
     return result.getStatisticsList().map((validator: ValidatorStatisticV2) => ({
-      address: Address.UmarshalPB(validator.getAddress()!),
+      address: Address.UnmarshalPB(validator.getAddress()!),
       pubKey: validator.getPubKey_asU8()!,
       upblockCount: validator.getUpblockCount(),
       blockCount: validator.getBlockCount(),
@@ -144,11 +144,11 @@ export class DPOS2 extends Contract {
     const delegation = result.getDelegation()
     return delegation
       ? {
-          validator: Address.UmarshalPB(delegation.getValidator()!),
+          validator: Address.UnmarshalPB(delegation.getValidator()!),
           updateValidator: delegation.getUpdateValidator()
-            ? Address.UmarshalPB(delegation.getUpdateValidator()!)
+            ? Address.UnmarshalPB(delegation.getUpdateValidator()!)
             : undefined,
-          delegator: Address.UmarshalPB(delegation.getDelegator()!),
+          delegator: Address.UnmarshalPB(delegation.getDelegator()!),
           amount: delegation.getAmount() ? unmarshalBigUIntPB(delegation.getAmount()!) : new BN(0),
           updateAmount: delegation.getUpdateAmount()
             ? unmarshalBigUIntPB(delegation.getAmount()!)
diff --git a/src/contracts/transfer-gateway.ts b/src/contracts/transfer-gateway.ts
index a4d106cf..2a5b3591 100644
--- a/src/contracts/transfer-gateway.ts
+++ b/src/contracts/transfer-gateway.ts
@@ -109,8 +109,8 @@ export class TransferGateway extends Contract {
         }
 
         this.emit(TransferGateway.EVENT_TOKEN_WITHDRAWAL, {
-          tokenOwner: Address.UmarshalPB(eventData.getTokenOwner()!),
-          tokenContract: Address.UmarshalPB(eventData.getTokenContract()!),
+          tokenOwner: Address.UnmarshalPB(eventData.getTokenOwner()!),
+          tokenContract: Address.UnmarshalPB(eventData.getTokenContract()!),
           tokenKind,
           tokenId,
           tokenAmount,
@@ -123,8 +123,8 @@ export class TransferGateway extends Contract {
         )
 
         this.emit(TransferGateway.EVENT_CONTRACT_MAPPING_CONFIRMED, {
-          foreignContract: Address.UmarshalPB(contractMappingConfirmed.getForeignContract()!),
-          localContract: Address.UmarshalPB(contractMappingConfirmed.getLocalContract()!)
+          foreignContract: Address.UnmarshalPB(contractMappingConfirmed.getForeignContract()!),
+          localContract: Address.UnmarshalPB(contractMappingConfirmed.getLocalContract()!)
         } as IContractMappingConfirmedEventArgs)
       }
     })
@@ -295,8 +295,8 @@ export class TransferGateway extends Contract {
           break
       }
       return {
-        tokenOwner: Address.UmarshalPB(receipt.getTokenOwner()!),
-        tokenContract: Address.UmarshalPB(receipt.getTokenContract()!),
+        tokenOwner: Address.UnmarshalPB(receipt.getTokenOwner()!),
+        tokenContract: Address.UnmarshalPB(receipt.getTokenContract()!),
         tokenKind,
         tokenId,
         tokenAmount,
diff --git a/src/plasma-cash/plasma-cash-tx.ts b/src/plasma-cash/plasma-cash-tx.ts
index 734b62ba..81759dc6 100644
--- a/src/plasma-cash/plasma-cash-tx.ts
+++ b/src/plasma-cash/plasma-cash-tx.ts
@@ -96,13 +96,13 @@ export function unmarshalPlasmaTxPB(rawTx: PlasmaTx): PlasmaCashTx {
     denomination: rawTx.hasDenomination()
       ? unmarshalBigUIntPB(rawTx.getDenomination()!)
       : new BN(0),
-    newOwner: Address.UmarshalPB(rawTx.getNewOwner()!).local.toString(),
+    newOwner: Address.UnmarshalPB(rawTx.getNewOwner()!).local.toString(),
     sig: rawTx.getSignature_asU8(),
     proof: rawTx.getProof_asU8()
   })
   const sender = rawTx.getSender()
   if (sender) {
-    tx.prevOwner = Address.UmarshalPB(sender).local.toString()
+    tx.prevOwner = Address.UnmarshalPB(sender).local.toString()
   }
   return tx
 }