diff --git a/aws/data_source_aws_ecs_cluster.go b/aws/data_source_aws_ecs_cluster.go
index 2d8afeeea98f..8f738ce6b863 100644
--- a/aws/data_source_aws_ecs_cluster.go
+++ b/aws/data_source_aws_ecs_cluster.go
@@ -63,6 +63,7 @@ func dataSourceAwsEcsClusterRead(d *schema.ResourceData, meta interface{}) error
 			continue
 		}
 		d.SetId(aws.StringValue(cluster.ClusterArn))
+		d.Set("arn", cluster.ClusterArn)
 		d.Set("status", cluster.Status)
 		d.Set("pending_tasks_count", cluster.PendingTasksCount)
 		d.Set("running_tasks_count", cluster.RunningTasksCount)
diff --git a/aws/data_source_aws_ecs_cluster_test.go b/aws/data_source_aws_ecs_cluster_test.go
index 131c4656e9f6..3060b0715bc9 100644
--- a/aws/data_source_aws_ecs_cluster_test.go
+++ b/aws/data_source_aws_ecs_cluster_test.go
@@ -20,6 +20,7 @@ func TestAccAWSEcsDataSource_ecsCluster(t *testing.T) {
 					resource.TestCheckResourceAttr("data.aws_ecs_cluster.default", "pending_tasks_count", "0"),
 					resource.TestCheckResourceAttr("data.aws_ecs_cluster.default", "running_tasks_count", "0"),
 					resource.TestCheckResourceAttr("data.aws_ecs_cluster.default", "registered_container_instances_count", "0"),
+					resource.TestCheckResourceAttrSet("data.aws_ecs_cluster.default", "arn"),
 				),
 			},
 		},