diff --git a/.env.example b/.env.example
index 19bd362..77cf581 100644
--- a/.env.example
+++ b/.env.example
@@ -1 +1,2 @@
+NETWORK=testnet
 ADDRESS=WALLET1,WALLET2
diff --git a/README.md b/README.md
index e81ecef..118b193 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,12 @@ Copy the `.env.example` file and rename it to `.env`. Fill the variables with yo
 Don't forget to put `,` between the wallets.
 
 ```env
-WALLET=wallet1,wallet2,etc
+NETWORK={network}
+WALLET={wallet1},{wallet2},{wallet3},...
 ```
 
+NETWORK can be `devnet` or `testnet`.
+
 ## Run
 
 ### Run with go
diff --git a/main.go b/main.go
index 0c1d4bb..0f832a2 100644
--- a/main.go
+++ b/main.go
@@ -29,7 +29,7 @@ func main() {
 
 func run(w string) {
 	for {
-		url := "https://faucet.devnet.sui.io/gas"
+		url := "https://faucet." + strings.ToLower(os.Getenv("NETWORK")) + ".sui.io/gas"
 
 		request := `
 			{"FixedAmountRequest":{"recipient":"` + w + `"}}