diff --git a/meshtastic/deviceonly.proto b/meshtastic/deviceonly.proto
index 9c7a664..3be781f 100644
--- a/meshtastic/deviceonly.proto
+++ b/meshtastic/deviceonly.proto
@@ -98,7 +98,7 @@ message UserLite {
   /*
    * Whether or not the node can be messaged
    */
-  bool is_unmessagable = 9;
+  optional bool is_unmessagable = 9;
 }
 
 message NodeInfoLite {
diff --git a/meshtastic/mesh.proto b/meshtastic/mesh.proto
index 02caaac..eedc872 100644
--- a/meshtastic/mesh.proto
+++ b/meshtastic/mesh.proto
@@ -810,7 +810,7 @@ message User {
   /*
    * Whether or not the node can be messaged
    */
-  bool is_unmessagable = 9;
+  optional bool is_unmessagable = 9;
 }
 
 /*