diff --git a/l3config.js b/l3config.js
index f5e972f..7054080 100644
--- a/l3config.js
+++ b/l3config.js
@@ -297,7 +297,7 @@ function initForm() {
 	const UNII2Channels = [52, 56, 60, 64];
 	const UNII2EChannels = [100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140];
 	const Channels5GHz = [...UNII1Channels, ...UNII2Channels, ...UNII2EChannels].map(chan => [chan.toString(), chan.toString()]);
-	const Channels2GHz = Array(13).fill().map((_, chan) => [chan.toString(), chan.toString()]);
+	const Channels2GHz = Array(13).fill().map((_, chan) => [(chan+1).toString(), (chan+1).toString()]);
 
 	const l3cfg = new L3Config();
 	l3cfg.addSection(new L3Section('gateway', 'meta',