diff --git a/examples/common/pigweed/protos/device_service.proto b/examples/common/pigweed/protos/device_service.proto
index 6903e4a..19be27a 100644
--- a/examples/common/pigweed/protos/device_service.proto
+++ b/examples/common/pigweed/protos/device_service.proto
@@ -28,7 +28,7 @@
 }
 
 message FabricInfo {
-  uint32 fabric_id = 1;
+  uint64 fabric_id = 1;
   uint64 node_id = 2;
 }