diff --git a/cal/cal.php b/cal/cal.php
index f3823968..adef464b 100644
--- a/cal/cal.php
+++ b/cal/cal.php
@@ -45,11 +45,30 @@ function cal_addon_settings_post ( &$a, &$b  )
 {
     if (! local_user())
 	return;
+
+    if (!x($_POST,'cal-submit'))
+	return;
+
+    set_pconfig(local_user(),'cal','enable',intval($_POST['cal-enable']));
 }
 function cal_addon_settings ( &$a, &$s  )
 {
     if (! local_user())
 	return;
+
+    $enabled = get_pconfig(local_user(), 'cal', 'enable');
+    $checked = (($enabled) ? ' checked="checked" ' : '');
+    $url = $a->get_baseurl().'/cal/'.$a->user['nickname'].'/export/ical';
+
+    $s .= '<h3>'.t('Export Events').'</h3>';
+    $s .= '<p>'.t('If this is enabled, you public events will be available at').' <strong>'.$url.'</strong></p>';
+    $s .= '<div id="cal-enable-wrapper">';
+    $s .= '<label id="cal-enable-label" for="cal-checkbox">'. t('Enable calendar export') .'</label>';
+    $s .= '<input id="cal-checkbox" type="checkbox" name="cal-enable" value="1" ' . $checked . '/>';
+    $s .= '</div><div class="clear"></div>';
+    $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="cal-submit" class="settings-submit" value="' . t('Submit') . '" /></div>'; 
+    $s .= '</div><div class="clear"></div>';
+
 }
 
 ?>