diff --git a/proto/users/users.proto b/proto/users/users.proto
index ae099a4..18dfa5a 100644
--- a/proto/users/users.proto
+++ b/proto/users/users.proto
@@ -20,19 +20,19 @@ service UsersService {
 }
 
 message UserSettingsMessage {
-  string privacy_phone = 1;
-  string privacy_last_seen = 2;
-  string privacy_photo = 3;
-  string privacy_bio = 4;
-  string privacy_calls = 5;
-  string privacy_groups = 6;
-  string privacy_voice_msgs = 7;
-  bool notify_private_chats = 8;
-  bool notify_groups = 9;
-  bool notify_channels = 10;
-  bool show_message_preview = 11;
-  string theme = 12;
-  int32 text_size = 13;
+  optional string privacy_phone = 1;
+  optional string privacy_last_seen = 2;
+  optional string privacy_photo = 3;
+  optional string privacy_bio = 4;
+  optional string privacy_calls = 5;
+  optional string privacy_groups = 6;
+  optional string privacy_voice_msgs = 7;
+  optional bool notify_private_chats = 8;
+  optional bool notify_groups = 9;
+  optional bool notify_channels = 10;
+  optional bool show_message_preview = 11;
+  optional string theme = 12;
+  optional int32 text_size = 13;
   optional string chat_background = 14;
 }