diff --git a/fastly/resource_fastly_alert.go b/fastly/resource_fastly_alert.go
index 8184041e4..479d15875 100644
--- a/fastly/resource_fastly_alert.go
+++ b/fastly/resource_fastly_alert.go
@@ -102,7 +102,7 @@ func resourceFastlyAlert() *schema.Resource {
 
 			"service_id": {
 				Type:        schema.TypeString,
-				Required:    true,
+				Optional:    true,
 				ForceNew:    true,
 				Description: "The service which the alert monitors.",
 			},
diff --git a/fastly/resource_fastly_alert_test.go b/fastly/resource_fastly_alert_test.go
index 42a8ef1bd..004f34166 100644
--- a/fastly/resource_fastly_alert_test.go
+++ b/fastly/resource_fastly_alert_test.go
@@ -428,7 +428,6 @@ func testAccAlertPercentAggregateStatsConfig(alert gofastly.AlertDefinition) str
 resource "fastly_alert" "tf_percent" {
   name = "%s"
   description = "%s"
-  service_id = ""
   source = "%s"
   metric = "%s"