diff --git a/src/curies/mapping_service/rdflib_custom.py b/src/curies/mapping_service/rdflib_custom.py
index 8cdde20..e471da1 100644
--- a/src/curies/mapping_service/rdflib_custom.py
+++ b/src/curies/mapping_service/rdflib_custom.py
@@ -57,7 +57,7 @@ def query(
         initBindings=None,  # noqa:N803
         initNs=None,  # noqa:N803
         base=None,
-        DEBUG=False,
+        DEBUG=False,  # noqa:N803
     ):
         """Evaluate a SPARQL query on this processor's graph."""
         if isinstance(query, str):