diff --git a/share/public/css/netdisco.css b/share/public/css/netdisco.css
index 1acfda55..0c56b894 100644
--- a/share/public/css/netdisco.css
+++ b/share/public/css/netdisco.css
@@ -352,7 +352,7 @@ td > form.nd_inline-form {
 }
 
 /* set default state of collapsible lists as collapsed (hidden) */
-.nd_collapse-pre-hidden {
+.nd_collapse-pre-hidden, .nd_disabled-feature {
   display: none;
 }
 
diff --git a/share/views/sidebar/device/netmap.tt b/share/views/sidebar/device/netmap.tt
index 1a8b3b7c..5049f5a0 100644
--- a/share/views/sidebar/device/netmap.tt
+++ b/share/views/sidebar/device/netmap.tt
@@ -60,7 +60,9 @@
 
             <hr class="nd_sidebar-hr"/>
 
-            [% IF device_count < (vars.sidebar_defaults.device_netmap.too_many_devices || 1000) %]
+            [% IF device_count > (vars.sidebar_defaults.device_netmap.too_many_devices || 1000) %]
+            <span class="nd_disabled-feature">
+            [% END %]
             <div class="radio radio-success">
                 <input type="radio" name="mapshow" id="nd_mapshow-all"
                 [% 'checked' IF vars.sidebar_defaults.device_netmap.mapshow == 'all' %] value="all">
@@ -79,6 +81,8 @@
                   value="[% params.depth || vars.sidebar_defaults.device_netmap.hops || 1 | html_entity %]"/>
                 </label>
             </div>
+            [% IF device_count > (vars.sidebar_defaults.device_netmap.too_many_devices || 1000) %]
+            </span>
             [% END %]
 
             <label><span id="nd_vlan-label-text">Carrying VLAN: </span>