diff --git a/ecs.tf b/ecs.tf
index 8df7b5a..21af95f 100644
--- a/ecs.tf
+++ b/ecs.tf
@@ -40,7 +40,7 @@ resource "aws_ecs_service" "service" {
   desired_count   = 1
 
   network_configuration {
-    subnets          = [for s in data.aws_subnet.subnets : s.id]
+    subnets          = data.aws_subnet.subnets.*.id
     assign_public_ip = true
   }
 
diff --git a/lb.tf b/lb.tf
index 5130d8a..ccfcff1 100644
--- a/lb.tf
+++ b/lb.tf
@@ -2,7 +2,7 @@ resource "aws_lb" "alb" {
   name               = local.lb["name"]
   internal           = local.lb["internal"]
   load_balancer_type = "application"
-  subnets            = [for s in data.aws_subnet.subnets : s.id]
+  subnets            = data.aws_subnet.subnets.*.id
 }
 
 resource "aws_lb_target_group" "group" {