diff --git a/schema/pgsql-changes/upgrade_34.sql b/schema/pgsql-changes/upgrade_34.sql
index 6aed5e72..c8e57abe 100644
--- a/schema/pgsql-changes/upgrade_34.sql
+++ b/schema/pgsql-changes/upgrade_34.sql
@@ -1,6 +1,6 @@
 ALTER TABLE director_generated_file ALTER COLUMN content SET DEFAULT NULL;
-ALTER TABLE icinga_host_field ALTER COLUMN is_required SET DEFAULT NOT NULL;
-ALTER TABLE icinga_service_field ALTER COLUMN is_required SET DEFAULT NOT NULL;
+ALTER TABLE icinga_host_field ALTER COLUMN is_required SET NOT NULL;
+ALTER TABLE icinga_service_field ALTER COLUMN is_required SET NOT NULL;
 
 CREATE TABLE import_source (
   id serial,
diff --git a/schema/pgsql.sql b/schema/pgsql.sql
index aa09ddb0..b60f5787 100644
--- a/schema/pgsql.sql
+++ b/schema/pgsql.sql
@@ -484,7 +484,7 @@ CREATE INDEX host_inheritance_host_parent ON icinga_host_inheritance (parent_hos
 CREATE TABLE icinga_host_field (
   host_id integer NOT NULL,
   datafield_id integer NOT NULL,
-  is_required enum_boolean DEFAULT NOT NULL,
+  is_required enum_boolean NOT NULL,
   PRIMARY KEY (host_id, datafield_id),
   CONSTRAINT icinga_host_field_host
   FOREIGN KEY (host_id)
@@ -608,7 +608,7 @@ CREATE INDEX service_inheritance_service_parent ON icinga_service_inheritance (p
 CREATE TABLE icinga_service_field (
   service_id integer NOT NULL,
   datafield_id integer NOT NULL,
-  is_required enum_boolean DEFAULT NOT NULL,
+  is_required enum_boolean NOT NULL,
   PRIMARY KEY (service_id, datafield_id),
   CONSTRAINT icinga_service_field_service
   FOREIGN KEY (service_id)
@@ -1141,4 +1141,3 @@ CREATE TABLE director_datafield_setting (
 );
 
 CREATE INDEX director_datafield_datafield ON director_datafield_setting (datafield_id);
-