diff --git a/src/sophios/schemas/wic_schema.py b/src/sophios/schemas/wic_schema.py
index e4dcd551..84dc3c9f 100644
--- a/src/sophios/schemas/wic_schema.py
+++ b/src/sophios/schemas/wic_schema.py
@@ -712,5 +712,6 @@ def get_validator(tools_cwl: Tools, yml_stems: List[str], schema_store: Dict[str
     # try temporarily commenting this line out to generate the schema anyway.
     # Then, in any yml file, the very first line should show a "schema stack trace"
     Draft202012Validator.check_schema(schema)
-    validator = Draft202012Validator(schema, registry=registry)
+    validator = Draft202012Validator(schema, resolver=registry.resolver())
     return validator
+