diff --git a/db/migrate/20180214200224_add_domain_transfers_constraints.rb b/db/migrate/20180214200224_add_domain_transfers_constraints.rb
new file mode 100644
index 000000000..bd4023deb
--- /dev/null
+++ b/db/migrate/20180214200224_add_domain_transfers_constraints.rb
@@ -0,0 +1,7 @@
+class AddDomainTransfersConstraints < ActiveRecord::Migration
+  def change
+    change_column_null :domain_transfers, :domain_id, false
+    change_column_null :domain_transfers, :old_registrar_id, false
+    change_column_null :domain_transfers, :new_registrar_id, false
+  end
+end
diff --git a/db/structure.sql b/db/structure.sql
index 2cad3e06f..7e8fef018 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -954,12 +954,12 @@ ALTER SEQUENCE domain_statuses_id_seq OWNED BY domain_statuses.id;
 
 CREATE TABLE domain_transfers (
     id integer NOT NULL,
-    domain_id integer,
+    domain_id integer NOT NULL,
     status character varying,
     transfer_requested_at timestamp without time zone,
     transferred_at timestamp without time zone,
-    old_registrar_id integer,
-    new_registrar_id integer,
+    old_registrar_id integer NOT NULL,
+    new_registrar_id integer NOT NULL,
     created_at timestamp without time zone,
     updated_at timestamp without time zone,
     wait_until timestamp without time zone
@@ -5070,3 +5070,5 @@ INSERT INTO schema_migrations (version) VALUES ('20180126104536');
 
 INSERT INTO schema_migrations (version) VALUES ('20180126104903');
 
+INSERT INTO schema_migrations (version) VALUES ('20180214200224');
+