diff --git a/mesh.options b/mesh.options
index 2f8fada..4fb7985 100644
--- a/mesh.options
+++ b/mesh.options
@@ -19,6 +19,10 @@
 *ChannelSettings.psk max_size:16 fixed_length:true
 *ChannelSettings.name max_size:12
 
+*MyNodeInfo.firmware_version max_size:12
+*MyNodeInfo.hw_model max_size:12
+*MyNodeInfo.region max_size:12
+
 # MyMessage.name         max_size:40 
 # or fixed_length or fixed_count, or max_count