diff --git a/proto/vantage/v1/vantage.proto b/proto/vantage/v1/vantage.proto
index b753dc2..b02fe75 100644
--- a/proto/vantage/v1/vantage.proto
+++ b/proto/vantage/v1/vantage.proto
@@ -341,6 +341,9 @@ message ReportWorkloadsRequest {
   bool   systemd_ok    = 6;
   string systemd_error = 7;
   repeated Workload workloads = 8;  // empty on the offer call
+  // full marks the second call. It is not inferred from an empty workloads
+  // list: a host running nothing sends an empty list as its full report.
+  bool   full          = 9;
 }
 
 message ReportWorkloadsResponse {