diff --git a/actions/users b/actions/users
index acfc4df99..bbc26b136 100755
--- a/actions/users
+++ b/actions/users
@@ -5,6 +5,7 @@ Configuration helper for the LDAP user directory
 """
 
 import argparse
+import logging
 import os
 import re
 import shutil
@@ -12,6 +13,7 @@ import subprocess
 import sys
 
 import augeas
+
 from plinth import action_utils
 
 ACCESS_CONF = '/etc/security/access.conf'
@@ -200,8 +202,8 @@ def configure_ldapscripts():
     # modify a copy of the config file
     shutil.copy('/etc/ldapscripts/ldapscripts.conf', LDAPSCRIPTS_CONF)
 
-    aug = augeas.Augeas(
-        flags=augeas.Augeas.NO_LOAD + augeas.Augeas.NO_MODL_AUTOLOAD)
+    aug = augeas.Augeas(flags=augeas.Augeas.NO_LOAD +
+                        augeas.Augeas.NO_MODL_AUTOLOAD)
     aug.set('/augeas/load/Shellvars/lens', 'Shellvars.lns')
     aug.set('/augeas/load/Shellvars/incl[last() + 1]', LDAPSCRIPTS_CONF)
     aug.load()
@@ -325,13 +327,20 @@ def get_user_groups(username):
     output = process.stdout.decode().strip()
     if output:
         groups_part = output.split(' ')[2]
-        groups = groups_part.split('=')[1]
+        try:
+            groups = groups_part.split('=')[1]
+        except IndexError:
+            logging.warning('Could not read groups for user %s: \n%s',
+                            username, output)
+            return []
+
         group_names = [
             user.strip('()') for user in re.findall(r'\(.*?\)', groups)
         ]
         group_names.remove('users')
         return group_names
 
+    logging.warning('User %s not found in LDAP', username)
     return []