diff --git a/nimbus/rpc/rpc_types.nim b/nimbus/rpc/rpc_types.nim
index 4141324a2..e96b5e420 100644
--- a/nimbus/rpc/rpc_types.nim
+++ b/nimbus/rpc/rpc_types.nim
@@ -64,7 +64,7 @@ type
   TransactionObject* = object       # A transaction object, or null when no transaction was found:
     # Returned to user
     hash*: Hash256                    # hash of the transaction.
-    nonce*: UInt256                   # the number of transactions made by the sender prior to this one.
+    nonce*: AccountNonce              # the number of transactions made by the sender prior to this one.
     blockHash*: Option[Hash256]       # hash of the block where this transaction was in. null when its pending.
     blockNumber*: Option[BlockNumber] # block number where this transaction was in. null when its pending.
     transactionIndex*: Option[int64]  # integer of the transactions index position in the block. null when its pending.