diff --git a/filemanager/inc/class.filemanager_admin.inc.php b/filemanager/inc/class.filemanager_admin.inc.php
index 47d4f1d468..b2eb271835 100644
--- a/filemanager/inc/class.filemanager_admin.inc.php
+++ b/filemanager/inc/class.filemanager_admin.inc.php
@@ -121,7 +121,7 @@ class filemanager_admin extends filemanager_ui
 						{
 							$path = @key($content['mounts']['disable']);
 						}
-						// set umounted url for a (changed) remount
+						// set unmounted url for a (changed) remount
 						$mounts = Vfs::mount();
 						$content['mounts']['path'] = $path;
 						$content['mounts']['url'] = Vfs::parse_url($mounts[$path]);
@@ -171,6 +171,12 @@ class filemanager_admin extends filemanager_ui
 						$url .= $content['mounts']['url']['host'] ?: 'default';
 						$url .= $content['mounts']['url']['path'] ?: $path;
 
+						// WebDAV needs a trailing slash and while EGroupware redirects, NextCloud e.g. gives an error
+						if (preg_match('#^webdavs?://#', $url) && !substr($url, -1) !== '/')
+						{
+							$url .= '/';
+						}
+
 						if (($content['mounts']['enable'] || substr($content['mounts']['url']['scheme'], 0, 8) === 'stylite.') && !$this->versioning)
 						{
 							throw new Api\Exception\WrongUserinput(lang('Versioning requires EGroupware EPL'));