diff --git a/dcicutils/portal_utils.py b/dcicutils/portal_utils.py
index af96a34e9..2928eb3e7 100644
--- a/dcicutils/portal_utils.py
+++ b/dcicutils/portal_utils.py
@@ -480,7 +480,7 @@ def is_lookup_subtypes(lookup_options: int) -> bool:  # noqa
                 lookup_options = Portal.LOOKUP_UNDEFINED
                 if schema := self.get_schema(portal_type):
                     if callable(lookup_strategy):
-                        lookup_options, validator = lookup_strategy(self._portal, self.type, schema, identifying_value)
+                        lookup_options, validator = lookup_strategy(self, self.type, schema, identifying_value)
                         if callable(validator):
                             if validator(schema, identifying_property, identifying_value) is False:
                                 continue
@@ -499,7 +499,7 @@ def is_lookup_subtypes(lookup_options: int) -> bool:  # noqa
                 if is_lookup_root(lookup_options) and not is_lookup_root_first(lookup_options):
                     results.append(f"/{identifying_value}")
                 if is_lookup_subtypes(lookup_options):
-                    for subtype_name in self._portal.get_schema_subtype_names(self.type):
+                    for subtype_name in self.get_schema_subtype_names(self.type):
                         results.append(f"/{subtype_name}/{identifying_value}")
         return results
 
diff --git a/pyproject.toml b/pyproject.toml
index 0282e9e55..6e4f7f517 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "dcicutils"
-version = "8.8.6.1b5"
+version = "8.8.6.1b6"
 description = "Utility package for interacting with the 4DN Data Portal and other 4DN resources"
 authors = ["4DN-DCIC Team <support@4dnucleome.org>"]
 license = "MIT"