diff --git a/telemetry.proto b/telemetry.proto
index 82be278..1c36be7 100644
--- a/telemetry.proto
+++ b/telemetry.proto
@@ -29,12 +29,6 @@ message DeviceMetrics {
    * Percent of airtime for transmission used within the last hour.
    */
   float air_util_tx = 4;
-
-  /*
-   * This is sent by node only if it a router and if hop_limit is set to 0
-   * and is not being sent as a reliable message.
-   */
-  bool router_heartbeat = 5;
 }
 
 /*