diff --git a/site.conf b/site.conf
index e21b9f8..373176d 100644
--- a/site.conf
+++ b/site.conf
@@ -14,7 +14,7 @@
 	wifi24 = {
 		ssid = 'hamburg.freifunk.net',
 		channel = 1,
-		htmode = 'HT40+',
+		htmode = 'HT20',
 		mesh_ssid = 'f8:d1:11:87:52:2e',
 		mesh_bssid = 'f8:d1:11:87:52:2e',
 		mesh_mcast_rate = 12000,