diff --git a/python/obitools3/commands/stats.pyx b/python/obitools3/commands/stats.pyx
index c9af8c8..0d863f3 100644
--- a/python/obitools3/commands/stats.pyx
+++ b/python/obitools3/commands/stats.pyx
@@ -3,7 +3,7 @@
 from obitools3.apps.progress cimport ProgressBar  # @UnresolvedImport
 from obitools3.dms import DMS
 from obitools3.uri.decode import open_uri
-from obitools3.apps.optiongroups import addMinimalInputOption, addTaxonomyInputOption
+from obitools3.apps.optiongroups import addMinimalInputOption, addTaxonomyOption
 from obitools3.dms.view import RollbackException
 from obitools3.apps.config import logger
 from obitools3.dms.capi.obiview cimport COUNT_COLUMN
@@ -38,7 +38,7 @@ computed statistics in columns.
 def addOptions(parser):
     
     addMinimalInputOption(parser)
-    addTaxonomyInputOption(parser)
+    addTaxonomyOption(parser)
 
     group=parser.add_argument_group('obi stats specific options')