diff --git a/python/sdssdb/peewee/sdss5db/catalogdb.py b/python/sdssdb/peewee/sdss5db/catalogdb.py
index ddd06d60..4bd167bf 100644
--- a/python/sdssdb/peewee/sdss5db/catalogdb.py
+++ b/python/sdssdb/peewee/sdss5db/catalogdb.py
@@ -412,6 +412,7 @@ class Meta:
 class Tycho2(CatalogdbModel):
 
     designation = TextField(primary_key=True)
+    tycid = IntegerField(null=False)
 
     class Meta:
         table_name = 'tycho2'