diff --git a/examples/gno.land/p/demo/grc/grc20/banker.gno b/examples/gno.land/p/demo/grc/grc20/banker.gno
index f643d3e2635..7a3ebb18ef5 100644
--- a/examples/gno.land/p/demo/grc/grc20/banker.gno
+++ b/examples/gno.land/p/demo/grc/grc20/banker.gno
@@ -64,7 +64,7 @@ func (b *Banker) Mint(address std.Address, amount uint64) error {
 	b.balances.Set(string(address), newBalance)
 
 	std.Emit(
-		TransferEvent,
+		MintEvent,
 		"from", "",
 		"to", string(address),
 		"value", strconv.Itoa(int(amount)),
@@ -90,7 +90,7 @@ func (b *Banker) Burn(address std.Address, amount uint64) error {
 	b.balances.Set(string(address), newBalance)
 
 	std.Emit(
-		TransferEvent,
+		BurnEvent,
 		"from", string(address),
 		"to", "",
 		"value", strconv.Itoa(int(amount)),
@@ -146,9 +146,6 @@ func (b *Banker) Transfer(from, to std.Address, amount uint64) error {
 	toBalance := b.BalanceOf(to)
 	fromBalance := b.BalanceOf(from)
 
-	// debug.
-	// println("from", from, "to", to, "amount", amount, "fromBalance", fromBalance, "toBalance", toBalance)
-
 	if fromBalance < amount {
 		return ErrInsufficientBalance
 	}
@@ -165,6 +162,7 @@ func (b *Banker) Transfer(from, to std.Address, amount uint64) error {
 		"to", to.String(),
 		"value", strconv.Itoa(int(amount)),
 	)
+
 	return nil
 }
 
diff --git a/examples/gno.land/p/demo/grc/grc20/types.gno b/examples/gno.land/p/demo/grc/grc20/types.gno
index fe3aef349d9..201c6638914 100644
--- a/examples/gno.land/p/demo/grc/grc20/types.gno
+++ b/examples/gno.land/p/demo/grc/grc20/types.gno
@@ -56,6 +56,8 @@ type Token interface {
 }
 
 const (
+	MintEvent     = "Mint"
+	BurnEvent     = "Burn"
 	TransferEvent = "Transfer"
 	ApprovalEvent = "Approval"
 )