diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index cfc9d9f631db..8f36b87831a0 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -9,6 +9,7 @@ actions	Actions Semiconductor Co., Ltd.
 active-semi	Active-Semi International Inc
 ad	Avionic Design GmbH
 adapteva	Adapteva, Inc.
+adaptrum	Adaptrum, Inc.
 adh	AD Holdings Plc.
 adi	Analog Devices, Inc.
 advantech	Advantech Corporation