diff --git a/chord_metadata_service/patients/models.py b/chord_metadata_service/patients/models.py
index 4b84754db..e2f7035c9 100644
--- a/chord_metadata_service/patients/models.py
+++ b/chord_metadata_service/patients/models.py
@@ -35,7 +35,7 @@ def get_scope_filters() -> ModelScopeFilters:
         return {
             "project": {
                 "filter": "phenopackets__dataset__project_id",
-                "prefetch_related": ("phenopackets__dataset_set",)
+                "prefetch_related": ("phenopackets__dataset",)
             },
             "dataset": {
                 "filter": "phenopackets__dataset_id",