diff --git a/builtin/providers/pagerduty/resource_pagerduty_service_integration.go b/builtin/providers/pagerduty/resource_pagerduty_service_integration.go
index b9853f27e..4f68c7441 100644
--- a/builtin/providers/pagerduty/resource_pagerduty_service_integration.go
+++ b/builtin/providers/pagerduty/resource_pagerduty_service_integration.go
@@ -28,6 +28,17 @@ func resourcePagerDutyServiceIntegration() *schema.Resource {
 			"type": &schema.Schema{
 				Type:     schema.TypeString,
 				Required: true,
+				ValidateFunc: validateValueFunc([]string{
+					"aws_cloudwatch_inbound_integration",
+					"cloudkick_inbound_integration",
+					"event_transformer_api_inbound_integration",
+					"generic_email_inbound_integration",
+					"generic_events_api_inbound_integration",
+					"keynote_inbound_integration",
+					"nagios_inbound_integration",
+					"pingdom_inbound_integration",
+					"sql_monitor_inbound_integration",
+				}),
 			},
 			"integration_key": &schema.Schema{
 				Type:     schema.TypeString,