diff --git a/mirobo/airpurifier.py b/mirobo/airpurifier.py
index d45bc0ca7..9423eef07 100644
--- a/mirobo/airpurifier.py
+++ b/mirobo/airpurifier.py
@@ -65,8 +65,8 @@ def set_favorite_level(self, level: int):
         """Set favorite level."""
 
         # Set the favorite level used when the mode is `favorite`,
-        # should be  between 0 and 16.
-        return self.send("favorite_level", [level])  # 0 ... 16
+        # should be  between 0 and 17.
+        return self.send("set_favorite_level", [level])  # 0 ... 17
 
     def set_led_brightness(self, brightness: LedBrightness):
         """Set led brightness."""