diff --git a/x/gov/simulation/operations.go b/x/gov/simulation/operations.go
index 83122daeb..9e3dcae96 100644
--- a/x/gov/simulation/operations.go
+++ b/x/gov/simulation/operations.go
@@ -366,7 +366,7 @@ func operationSimulateMsgWeightedVote(ak types.AccountKeeper, bk types.BankKeepe
 			return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to generate fees"), nil, err
 		}
 
-		txGen := simappparams.MakeEncodingConfig().TxConfig
+		txGen := simappparams.MakeTestEncodingConfig().TxConfig
 		tx, err := helpers.GenTx(
 			txGen,
 			[]sdk.Msg{msg},