diff --git a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js
index 057e17fe81..b025a3eeb2 100644
--- a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js
+++ b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js
@@ -93,8 +93,6 @@ return network.registerProtocol('pppoe', {
 		o.placeholder = '0';
 		o.datatype    = 'uinteger';
 
-		o = s.taboption('advanced', form.Value, 'mtu', _('Override MTU'));
-		o.placeholder = dev ? (dev.getMTU() || '1500') : '1500';
-		o.datatype    = 'max(9200)';
+		/* pppoe.so has no MTU option - only underlying device MTU is possible */
 	}
 });