diff --git a/meshtastic/telemetry.proto b/meshtastic/telemetry.proto
index 88d8213..12ad55f 100644
--- a/meshtastic/telemetry.proto
+++ b/meshtastic/telemetry.proto
@@ -795,6 +795,11 @@ enum TelemetrySensorType {
    * BH1750 light sensor
    */
   BH1750 = 45;
+  
+  /*
+  * HDC1080 Temperature and Humidity Sensor
+  */
+  HDC1080 = 46;
 }
 
 /*