diff --git a/s3-config-org/main.tf b/s3-config-org/main.tf
index 370b7aa..2e0c46b 100644
--- a/s3-config-org/main.tf
+++ b/s3-config-org/main.tf
@@ -69,6 +69,11 @@ resource "aws_s3_bucket_logging" "config_org" {
   bucket        = aws_s3_bucket.config_org.id
   target_bucket = var.access_log_bucket
   target_prefix = format("%v/%v/", var.access_log_bucket_prefix, local.bucket_name)
+  target_object_key_format {
+    partitioned_prefix {
+      partition_date_source = "EventTime"
+    }
+  }
 }
 
 resource "aws_s3_bucket_acl" "config_org" {