diff --git a/src/BidRequest/Specification/DeviceType.php b/src/BidRequest/Specification/DeviceType.php
index c26162a..dc883a2 100644
--- a/src/BidRequest/Specification/DeviceType.php
+++ b/src/BidRequest/Specification/DeviceType.php
@@ -15,4 +15,5 @@ class DeviceType
     const TABLET = 5;
     const CONNECTED_DEVICE = 6;
     const SET_TOP_BOX = 7;
+    const OOH_DEVICE = 8;
 }