diff --git a/source/_components/climate.mqtt.markdown b/source/_components/climate.mqtt.markdown
index 575d753fb42..a5f38468a43 100644
--- a/source/_components/climate.mqtt.markdown
+++ b/source/_components/climate.mqtt.markdown
@@ -107,7 +107,7 @@ mode_state_template:
   required: false
   type: template
 modes:
-  description: A list of supported modes.
+  description: A list of supported modes. Needs to be a subset of the default values.
   required: false
   default: ['auto', 'off', 'cool', 'heat', 'dry', 'fan_only']
   type: list