diff --git a/examples/rtl_433_mqtt_hass.py b/examples/rtl_433_mqtt_hass.py
index 5f1ca3e4b..591c69cfa 100755
--- a/examples/rtl_433_mqtt_hass.py
+++ b/examples/rtl_433_mqtt_hass.py
@@ -226,7 +226,7 @@
 
     "moisture": {
         "device_type": "sensor",
-        "object_suffix": "H",
+        "object_suffix": "M",
         "config": {
             "device_class": "moisture",
             "name": "Moisture",