diff --git a/migrations/versions/0003_add_service_history.py b/migrations/versions/0003_add_service_history.py
index 306176941..8fff86169 100644
--- a/migrations/versions/0003_add_service_history.py
+++ b/migrations/versions/0003_add_service_history.py
@@ -33,7 +33,7 @@ def upgrade():
     op.add_column('services', sa.Column('created_by_id', postgresql.UUID(as_uuid=True), nullable=True))
     op.add_column('services', sa.Column('version', sa.Integer(), nullable=True))
     op.create_index(op.f('ix_services_created_by_id'), 'services', ['created_by_id'], unique=False)
-    op.create_foreign_key(None, 'services', 'users', ['created_by_id'], ['id'])
+    op.create_foreign_key('fk_services_created_by_id', 'services', 'users', ['created_by_id'], ['id'])
 
     op.get_bind()
     op.execute('UPDATE services SET created_by_id = (SELECT user_id FROM user_to_service WHERE services.id = user_to_service.service_id LIMIT 1)')
@@ -47,7 +47,7 @@ def upgrade():
 
 def downgrade():
     ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint(None, 'services', type_='foreignkey')
+    op.drop_constraint('fk_services_created_by_id', 'services', type_='foreignkey')
     op.drop_index(op.f('ix_services_created_by_id'), table_name='services')
     op.drop_column('services', 'version')
     op.drop_column('services', 'created_by_id')