diff --git a/homeassistant/components/tuya/strings.json b/homeassistant/components/tuya/strings.json
index bcf19a3ba003..71e756e57f4c 100644
--- a/homeassistant/components/tuya/strings.json
+++ b/homeassistant/components/tuya/strings.json
@@ -502,6 +502,7 @@
         "name": "Indicator light mode",
         "state": {
           "none": "[%key:common::state::off%]",
+          "on": "[%key:common::state::on%]",
           "pos": "Indicate inverted switch state",
           "relay": "Indicate switch on/off state"
         }