diff --git a/plugins/LdapAuthorization/LdapAuthorizationPlugin.php b/plugins/LdapAuthorization/LdapAuthorizationPlugin.php
index 2608025ddc..042b2db8d8 100644
--- a/plugins/LdapAuthorization/LdapAuthorizationPlugin.php
+++ b/plugins/LdapAuthorization/LdapAuthorizationPlugin.php
@@ -131,13 +131,13 @@ class LdapAuthorizationPlugin extends AuthorizationPlugin
     {
         $ldap = $this->ldap_get_connection();
         $link = $ldap->getLink();
-        $r = ldap_compare($link, $groupDn, $this->uniqueMember_attribute, $userDn);
+        $r = @ldap_compare($link, $groupDn, $this->uniqueMember_attribute, $userDn);
         if ($r === true){
             return true;
         }else if($r === false){
             return false;
         }else{
-            common_log(LOG_ERR, ldap_error($r));
+            common_log(LOG_ERR, "LDAP error determining if userDn=$userDn is a member of groupDn=groupDn using uniqueMember_attribute=$this->uniqueMember_attribute error: ".ldap_error($link));
             return false;
         }
     }