replace name by tag
@@ -4,7 +4,7 @@ import numpy as np
from numpy.testing import assert_allclose
from astropy.table import Column, Table
from astropy.units import Quantity
-from gammapy.catalog import SourceCatalog
+from gammapy.catalog import SourceCatalog, CATALOG_REGISTRY
from gammapy.utils.testing import assert_quantity_allclose
