diff --git a/corepos/db/office_op/model.py b/corepos/db/office_op/model.py
index f525144..400c4a6 100644
--- a/corepos/db/office_op/model.py
+++ b/corepos/db/office_op/model.py
@@ -801,6 +801,13 @@ class CustomerAccount(Base):
 
     customer_type_id = sa.Column('customerTypeID', sa.Integer(), nullable=True,
                                  default=1)
+    customer_type = orm.relationship(
+        MemberType,
+        primaryjoin=MemberType.id == customer_type_id,
+        foreign_keys=[customer_type_id],
+        doc="""
+        Reference to the :class:`MemberType` with which this account is associated.
+        """)
 
     charge_balance = sa.Column('chargeBalance', sa.Numeric(precision=10, scale=2), nullable=True,
                                default=0)