diff --git a/meshtastic/admin.options b/meshtastic/admin.options
index 66062e7..64ea2f3 100644
--- a/meshtastic/admin.options
+++ b/meshtastic/admin.options
@@ -7,4 +7,5 @@
 *AdminMessage.get_ringtone_response max_size:231
 
 
-*HamParameters.call_sign max_size:8
\ No newline at end of file
+*HamParameters.call_sign max_size:8
+*HamParameters.short_name max_size:6
\ No newline at end of file
diff --git a/meshtastic/admin.proto b/meshtastic/admin.proto
index c2623aa..05c975a 100644
--- a/meshtastic/admin.proto
+++ b/meshtastic/admin.proto
@@ -304,4 +304,9 @@ message HamParameters {
    * Ensure your radio is capable of operating of the selected frequency before setting this.
    */
   float frequency = 3;
+
+  /*
+   * Optional short name of user
+   */
+  string short_name = 4;
 }