diff --git a/meshtastic/admin.options b/meshtastic/admin.options
index a2131f9..66062e7 100644
--- a/meshtastic/admin.options
+++ b/meshtastic/admin.options
@@ -7,4 +7,4 @@
 *AdminMessage.get_ringtone_response max_size:231
 
 
-*HamParameters.call_sign max_size:6
\ No newline at end of file
+*HamParameters.call_sign max_size:8
\ No newline at end of file