diff --git a/flowlogs/main.tf b/flowlogs/main.tf
index 2bc3527..3624042 100644
--- a/flowlogs/main.tf
+++ b/flowlogs/main.tf
@@ -96,7 +96,8 @@ resource "aws_flow_log" "flowlog" {
 # flowlog, cloudwatch
 #---
 resource "aws_cloudwatch_log_group" "flowlog" {
-  name = format("%v%v", local._prefixes["log-group"], var.vpc_full_name)
+  name              = format("%v%v", local._prefixes["log-group"], var.vpc_full_name)
+  retention_in_days = var.retention_in_days
 
   tags = merge(
     local.base_tags,
@@ -106,11 +107,10 @@ resource "aws_cloudwatch_log_group" "flowlog" {
 }
 
 resource "aws_flow_log" "flowlog_cloudwatch" {
-  log_destination   = aws_cloudwatch_log_group.flowlog.arn
-  iam_role_arn      = var.flowlog_role_arn
-  traffic_type      = "ALL"
-  vpc_id            = var.vpc_id
-  retention_in_days = var.retention_in_days
+  log_destination = aws_cloudwatch_log_group.flowlog.arn
+  iam_role_arn    = var.flowlog_role_arn
+  traffic_type    = "ALL"
+  vpc_id          = var.vpc_id
 
   tags = merge(
     local.base_tags,