diff --git a/source/_components/sensor.qnap.markdown b/source/_components/sensor.qnap.markdown
index 2af2e0c01a7..38dd16ca985 100644
--- a/source/_components/sensor.qnap.markdown
+++ b/source/_components/sensor.qnap.markdown
@@ -70,6 +70,7 @@ If your QNAP device uses self-signed certificates, set the `verify_ssl` option t
 
 This component has been tested on the following devices:
 
+ - TS-259 Pro+ (QTS 4.2.6)
  - TS-410 (QTS 4.2.3)
  - TS-419 (QTS 4.2.3)
  - TS-451 (QTS 4.2.2)