diff --git a/google/resource_sql_database_instance.go b/google/resource_sql_database_instance.go
index 31852a87..5f026532 100644
--- a/google/resource_sql_database_instance.go
+++ b/google/resource_sql_database_instance.go
@@ -347,7 +347,6 @@ func resourceSqlDatabaseInstance() *schema.Resource {
 			"server_ca_cert": &schema.Schema{
 				Type:     schema.TypeList,
 				Computed: true,
-				Optional: true,
 				MaxItems: 1,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{