diff --git a/eth/options.go b/eth/options.go
index bf6f77c..b06cca6 100644
--- a/eth/options.go
+++ b/eth/options.go
@@ -143,7 +143,7 @@ func WithAddPriorityFeePerGasGwei(g float64) TxOption {
 	})
 }
 
-func WithAddGassFeeRatio(r float64) TxOption {
+func WithAddGasFeeRatio(r float64) TxOption {
 	return newFuncTxOption(func(o *txOptions) {
 		o.addGasFeeRatio = r
 	})