diff --git a/custom_components/tuya_local/devices/snt957w_tde_temp.yaml b/custom_components/tuya_local/devices/snt957w_tde_temp.yaml
index df91995e18..c8e0657b42 100644
--- a/custom_components/tuya_local/devices/snt957w_tde_temp.yaml
+++ b/custom_components/tuya_local/devices/snt957w_tde_temp.yaml
@@ -42,6 +42,7 @@ secondary_entities:
           max: 1200
         mapping:
           - scale: 10
+        optional: true
   - entity: number
     name: Low temperature limit
     category: config