diff --git a/aws-ecs-service-fargate/service.tf b/aws-ecs-service-fargate/service.tf
index 77640b8e..4f90aed2 100644
--- a/aws-ecs-service-fargate/service.tf
+++ b/aws-ecs-service-fargate/service.tf
@@ -62,7 +62,7 @@ resource "aws_ecs_service" "job" {
   dynamic "service_registries" {
     for_each = aws_service_discovery_service.discovery[*]
     content {
-      registry_arn = service_registries.arn
+      registry_arn = service_registries.value.arn
     }
   }
 
@@ -95,7 +95,7 @@ resource "aws_ecs_service" "unmanaged-job" {
   dynamic "service_registries" {
     for_each = aws_service_discovery_service.discovery[*]
     content {
-      registry_arn = aws_service_discovery_service.discovery[0].arn
+      registry_arn = service_registries.value.arn
     }
   }
 
diff --git a/aws-ecs-service/service.tf b/aws-ecs-service/service.tf
index 9a7cdb39..d74b8659 100644
--- a/aws-ecs-service/service.tf
+++ b/aws-ecs-service/service.tf
@@ -65,7 +65,7 @@ resource "aws_ecs_service" "job" {
   dynamic "service_registries" {
     for_each = aws_service_discovery_service.discovery[*]
     content {
-      registry_arn = service_registries.arn
+      registry_arn = service_registries.value.arn
     }
   }
 
@@ -100,7 +100,7 @@ resource "aws_ecs_service" "unmanaged-job" {
   dynamic "service_registries" {
     for_each = aws_service_discovery_service.discovery[*]
     content {
-      registry_arn = aws_service_discovery_service.discovery[0].arn
+      registry_arn = service_registries.value.arn
     }
   }