diff --git a/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py b/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py
index e24e5d4..8727250 100644
--- a/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py
+++ b/src/dandi_s3_log_parser/_map_binned_s3_logs_to_dandisets.py
@@ -91,8 +91,8 @@ def map_binned_s3_logs_to_dandisets(
             ip_hash_not_in_services=ip_hash_not_in_services,
         )
 
-    _save_ip_hash_cache(ip_hash_to_region, name="region")
-    _save_ip_hash_cache(ip_hash_not_in_services, name="services")
+    _save_ip_hash_cache(name="region", ip_cache=ip_hash_to_region)
+    _save_ip_hash_cache(name="services", ip_cache=ip_hash_not_in_services)
 
     return None