diff --git a/src/models/event.go b/src/models/event.go
index 5574c8a..97151a5 100644
--- a/src/models/event.go
+++ b/src/models/event.go
@@ -32,7 +32,7 @@ type Event struct {
 	Src     *Src      `xorm:"int src_id index"`
 	Host    *Host     `xorm:"int host_id index"`
 	IP      *IP       `xorm:"int ip_id index"`
-	Created time.Time `xorm:"created notnull"`
+	Created time.Time `xorm:"created notnull index"`
 }
 
 type APIEvent struct {