diff --git a/config/step/gwas_catalog.yaml b/config/step/gwas_catalog.yaml
index 7a82fe3c2..ea357eb72 100644
--- a/config/step/gwas_catalog.yaml
+++ b/config/step/gwas_catalog.yaml
@@ -1,6 +1,6 @@
 _target_: otg.gwas_catalog.GWASCatalogStep
 catalog_study_files: ${datasets.catalog_studies}
-catalog_ancestry_file: ${datasets.catalog_ancestries}
+catalog_ancestry_files: ${datasets.catalog_ancestries}
 catalog_associations_file: ${datasets.catalog_associations}
 catalog_sumstats_lut: ${datasets.catalog_sumstats_lut}
 variant_annotation_path: ${datasets.variant_annotation}