diff --git a/miio/discovery.py b/miio/discovery.py
index 88d011e8b..7910d1bee 100644
--- a/miio/discovery.py
+++ b/miio/discovery.py
@@ -44,7 +44,7 @@
     "zhimi-airpurifier-v3": AirPurifier,   # v3
     "zhimi-airpurifier-v5": AirPurifier,   # v5
     "zhimi-airpurifier-v6": AirPurifier,   # v6
-    "zhimi-airpurifier-v7": AirPurifier,   # v6
+    "zhimi-airpurifier-v7": AirPurifier,   # v7
     "zhimi-airpurifier-mc1": AirPurifier,  # mc1
     "chuangmi-ir-v2": ChuangmiIr,
     "zhimi-humidifier-v1": partial(AirHumidifier, model=MODEL_HUMIDIFIER_V1),