diff --git a/components/loctekmotion_desk_height/desk_height_sensor.h b/components/loctekmotion_desk_height/desk_height_sensor.h
index a19df52..90bc20f 100644
--- a/components/loctekmotion_desk_height/desk_height_sensor.h
+++ b/components/loctekmotion_desk_height/desk_height_sensor.h
@@ -24,7 +24,7 @@ class DeskHeightSensor : public sensor::Sensor,
   float lastPublished = -1;
   uint8_t history[5];
 
-  int msg_len = 0;
+  uint8_t msg_len = 0;
   uint8_t msg_type;
   bool valid = false;
 };