diff --git a/src/neuroconv/tools/yaml_conversion_specification/_yaml_conversion_specification.py b/src/neuroconv/tools/yaml_conversion_specification/_yaml_conversion_specification.py
index 827a6c8bd..244cd5013 100644
--- a/src/neuroconv/tools/yaml_conversion_specification/_yaml_conversion_specification.py
+++ b/src/neuroconv/tools/yaml_conversion_specification/_yaml_conversion_specification.py
@@ -84,20 +84,13 @@ def run_conversion_from_yaml(
     specification_schema = load_dict_from_file(file_path=schema_folder / "yaml_conversion_specification_schema.json")
     metadata_schema = load_dict_from_file(file_path=schema_folder / "metadata_schema.json")
 
-    # Create registry and add schemas starting with the metadata schema
-    registry = Registry().with_resource(
-        "metadata_schema.json", Resource.from_contents(metadata_schema)  # Base name without './'
+    # Create registry and add schemas
+    registry = (
+        Registry()
+        .with_resource("metadata_schema.json", Resource.from_contents(metadata_schema))
+        .with_resource("yaml_conversion_specification_schema.json", Resource.from_contents(specification_schema))
     )
 
-    # Then add the specification schema with the metadata schema reference
-    registry = registry.with_resource(
-        "yaml_conversion_specification_schema.json",  # This will be the base URI
-        Resource.from_contents(specification_schema),
-    )
-
-    # Also add with relative path since that's how it's referenced
-    registry = registry.with_resource("./metadata_schema.json", Resource.from_contents(metadata_schema))
-
     # Validate using the registry
     validate(
         instance=specification,
diff --git a/tests/test_on_data/test_yaml/test_yaml_conversion_specification.py b/tests/test_on_data/test_yaml/test_yaml_conversion_specification.py
index 251e081ee..93d9f0f56 100644
--- a/tests/test_on_data/test_yaml/test_yaml_conversion_specification.py
+++ b/tests/test_on_data/test_yaml/test_yaml_conversion_specification.py
@@ -33,12 +33,7 @@ def test_validate_example_specifications(fname):
     metadata_schema = load_dict_from_file(file_path=schema_folder / "metadata_schema.json")
 
     # Create registry and add schemas
-    registry = (
-        Registry()
-        .with_resource("metadata_schema.json", Resource.from_contents(metadata_schema))
-        .with_resource("yaml_conversion_specification_schema.json", Resource.from_contents(specification_schema))
-        .with_resource("./metadata_schema.json", Resource.from_contents(metadata_schema))
-    )
+    registry = Registry().with_resource("metadata_schema.json", Resource.from_contents(metadata_schema))
 
     yaml_file_path = path_to_test_yml_files / fname
     validate(