diff --git a/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm b/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
index 5e5125f3d..17b341300 100644
--- a/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
+++ b/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
@@ -29,6 +29,10 @@
 		<label class="cbi-value-title"><%:Dynamic master interface%></label>
 		<div class="cbi-value-field">
 		    <input type="checkbox" name="master_type" class="cbi-input-checkbox" value="dynamic" <% if luci.model.uci.cursor():get("openmptcprouter","settings","master") == "dynamic" then %>checked<% end %>>
+		    <br />
+		    <div class="cbi-value-description">
+		        <%:Connection with lowest RTT is used as master interface%>
+		    </div>
 		</div>
 	    </div>
 	    <div class="cbi-value">