diff --git a/pkg/core/native/native_nep5.go b/pkg/core/native/native_nep5.go
index e969805cb..eb8c0ef23 100644
--- a/pkg/core/native/native_nep5.go
+++ b/pkg/core/native/native_nep5.go
@@ -208,11 +208,17 @@ func (c *nep5TokenNative) balanceOf(ic *interop.Context, args []vm.StackItem) vm
 }
 
 func (c *nep5TokenNative) mint(ic *interop.Context, h util.Uint160, amount *big.Int) {
+	if amount.Sign() == 0 {
+		return
+	}
 	c.addTokens(ic, h, amount)
 	c.emitTransfer(ic, nil, &h, amount)
 }
 
 func (c *nep5TokenNative) burn(ic *interop.Context, h util.Uint160, amount *big.Int) {
+	if amount.Sign() == 0 {
+		return
+	}
 	amount = new(big.Int).Neg(amount)
 	c.addTokens(ic, h, amount)
 	c.emitTransfer(ic, &h, nil, amount)