diff --git a/feemarket/plugins/mock/feemarket.go b/feemarket/plugins/mock/feemarket.go
index d867377..b4cf141 100644
--- a/feemarket/plugins/mock/feemarket.go
+++ b/feemarket/plugins/mock/feemarket.go
@@ -12,33 +12,33 @@ var _ feemarket.FeeMarket = FeeMarket{}
 type FeeMarket struct{}
 
 // Init which initializes the fee market (in InitGenesis)
-func (fm FeeMarket) Init(ctx sdk.Context) error {
+func (fm FeeMarket) Init(_ sdk.Context) error {
 	return nil
 }
 
 // EndBlockUpdateHandler allows the fee market to be updated
 // after every block. This will be added to the EndBlock chain.
-func (fm FeeMarket) EndBlockUpdateHandler(ctx sdk.Context) feemarket.UpdateHandler {
+func (fm FeeMarket) EndBlockUpdateHandler(_ sdk.Context) feemarket.UpdateHandler {
 	return nil
 }
 
 // EpochUpdateHandler allows the fee market to be updated
 // after every given epoch identifier. This maps the epoch
 // identifier to the UpdateHandler that should be executed.
-func (fm FeeMarket) EpochUpdateHandler(ctx sdk.Context) map[string]feemarket.UpdateHandler {
+func (fm FeeMarket) EpochUpdateHandler(_ sdk.Context) map[string]feemarket.UpdateHandler {
 	return nil
 }
 
 // GetMinGasPrice retrieves the minimum gas price(s) needed
 // to be included in the block for the given transaction
-func (fm FeeMarket) GetMinGasPrice(ctx sdk.Context, tx sdk.Tx) sdk.Coins {
+func (fm FeeMarket) GetMinGasPrice(_ sdk.Context, _ sdk.Tx) sdk.Coins {
 	return sdk.NewCoins()
 }
 
 // GetFeeMarketInfo retrieves the fee market's information about
 // how to pay for a transaction (min gas price, min tip,
 // where the fees are being distributed, etc.).
-func (fm FeeMarket) GetFeeMarketInfo(ctx sdk.Context) map[string]string {
+func (fm FeeMarket) GetFeeMarketInfo(_ sdk.Context) map[string]string {
 	return nil
 }
 
@@ -50,26 +50,26 @@ func (fm FeeMarket) GetID() string {
 // FeeAnteHandler will be called in the module AnteHandler.
 // Performs no actions.
 func (fm FeeMarket) FeeAnteHandler(
-	ctx sdk.Context,
-	tx sdk.Tx,
-	simulate bool,
+	_ sdk.Context,
+	_ sdk.Tx,
+	_ bool,
 	next sdk.AnteHandler,
 ) sdk.AnteHandler {
 	return func(ctx sdk.Context, tx sdk.Tx, simulate bool) (newCtx sdk.Context, err error) {
-		return ctx, nil
+		return next(ctx, tx, simulate)
 	}
 }
 
 // FeePostHandler will be called in the module PostHandler
 // if PostHandlers are implemented. Performs no actions.
 func (fm FeeMarket) FeePostHandler(
-	ctx sdk.Context,
-	tx sdk.Tx,
-	simulate,
-	success bool,
+	_ sdk.Context,
+	_ sdk.Tx,
+	_,
+	_ bool,
 	next sdk.PostHandler,
 ) sdk.PostHandler {
 	return func(ctx sdk.Context, tx sdk.Tx, simulate, success bool) (newCtx sdk.Context, err error) {
-		return ctx, nil
+		return next(ctx, tx, simulate, success)
 	}
 }