diff --git a/htdocs/admin/dav.php b/htdocs/admin/dav.php
index e882a56e2b8..6f82c4f94a9 100644
--- a/htdocs/admin/dav.php
+++ b/htdocs/admin/dav.php
@@ -83,7 +83,16 @@ if ($action == 'edit')
 
 		print '<tr class="oddeven"><td>';
 		print $form->textwithpicto($langs->trans($key), $langs->trans($key.'Tooltip'));
-		print '</td><td><input name="'.$key.'"  class="flat '.(empty($val['css'])?'minwidth200':$val['css']).'" value="' . $conf->global->$key . '"></td></tr>';
+		print '</td><td>';
+		if ($key == 'DAV_ALLOW_PUBLIC_DIR' || $key == 'DAV_ALLOW_ECM_DIR')
+		{
+			print $form->selectyesno($key, $conf->global->$key, 1);
+		}
+		else
+		{
+			print '<input name="'.$key.'"  class="flat '.(empty($val['css'])?'minwidth200':$val['css']).'" value="' . $conf->global->$key . '">';
+		}
+		print '</td></tr>';
 	}
 
 	print '</table>';
@@ -104,7 +113,16 @@ else
 	{
 		print '<tr class="oddeven"><td>';
 		print $form->textwithpicto($langs->trans($key),$langs->trans($key.'Tooltip'));
-		print '</td><td>' . $conf->global->$key . '</td></tr>';
+		print '</td><td>';
+		if ($key == 'DAV_ALLOW_PUBLIC_DIR' || $key == 'DAV_ALLOW_ECM_DIR')
+		{
+			print yn($conf->global->$key);
+		}
+		else
+		{
+			print $conf->global->$key;
+		}
+		print '</td></tr>';
 	}
 
 	print '</table>';