diff --git a/src/modules/territories/adapters/primaries/territory.proto b/src/modules/territories/adapters/primaries/territory.proto
index 1d174c9..6191db0 100644
--- a/src/modules/territories/adapters/primaries/territory.proto
+++ b/src/modules/territories/adapters/primaries/territory.proto
@@ -35,3 +35,5 @@ message Point {
   float lon = 1;
   float lat = 2;
 }
+
+message Empty {}