diff --git a/contrib/openldap/core-fd-conf.schema b/contrib/openldap/core-fd-conf.schema
index cff504d0596a1f59a0e7ac3073a803c7f3f1c1be..d35e9e1f8a1eca088a2e02088ec8e4d3fcd6a0db 100644
--- a/contrib/openldap/core-fd-conf.schema
+++ b/contrib/openldap/core-fd-conf.schema
@@ -225,6 +225,7 @@ attributetype ( 1.3.6.1.4.1.38414.8.13.8 NAME 'fdForcePasswordDefaultHash'
 
 attributetype ( 1.3.6.1.4.1.38414.8.14.1 NAME 'fdPrimaryGroupFilter'
   DESC 'FusionDirectory - Primary group filter'
+  OBSOLETE
   EQUALITY booleanMatch
   SYNTAX 1.3.6.1.4.1.1466.115.121.1.7
   SINGLE-VALUE )
diff --git a/plugins/config/class_configInLdap.inc b/plugins/config/class_configInLdap.inc
index f0e5b992d6e4b6b6c4af00a3f39e31d9cfa5671d..e59cf87e8d5cb13b2004ca565587d920050c97ca 100644
--- a/plugins/config/class_configInLdap.inc
+++ b/plugins/config/class_configInLdap.inc
@@ -157,12 +157,6 @@ class configInLdap extends simplePlugin
       'core_settings' => array(
         'name'  => _('Core settings'),
         'attrs' => array(
-          new BooleanAttribute (
-            _('Enable primary group filter'),
-            _('It is time consuming to evaluate which groups are primary and which are not, so you may want to disable it if your group plugin is slow.'),
-            'fdPrimaryGroupFilter', FALSE,
-            TRUE
-          ),
           new BooleanAttribute (
             _('Display summary in listings'),
             _('Determines whether a status bar will be shown on the bottom of lists, displaying a short summary of type and number of elements in the list.'),