diff --git a/homeassistant/components/thread/discovery.py b/homeassistant/components/thread/discovery.py
index 850c5ec37ccc..a6ddb29099b5 100644
--- a/homeassistant/components/thread/discovery.py
+++ b/homeassistant/components/thread/discovery.py
@@ -36,6 +36,7 @@ KNOWN_BRANDS: dict[str | None, str] = {
     "OpenThread": "openthread",
     "Samsung": "samsung",
     "SmartThings": "smartthings",
+    "SMLIGHT": "smlight",
     "Yeelight": "yeelight",
 }
 THREAD_TYPE = "_meshcop._udp.local."