diff --git a/third_party/terraform/resources/resource_container_cluster.go.erb b/third_party/terraform/resources/resource_container_cluster.go.erb
index 69552f8cab1a..a4aa5e2d6169 100644
--- a/third_party/terraform/resources/resource_container_cluster.go.erb
+++ b/third_party/terraform/resources/resource_container_cluster.go.erb
@@ -182,7 +182,7 @@ func resourceContainerCluster() *schema.Resource {
 							Type:       schema.TypeList,
 							Optional:   true,
 							Computed:   true,
-							Deprecated: "The Kubernetes Dashboard addon is deprecated for clusters on GKE."
+							Deprecated: "The Kubernetes Dashboard addon is deprecated for clusters on GKE.",
 							MaxItems: 1,
 							Elem: &schema.Resource{
 								Schema: map[string]*schema.Schema{