diff --git a/go/delivery/checker.go b/go/delivery/checker.go
index 679985b..8b7a95c 100644
--- a/go/delivery/checker.go
+++ b/go/delivery/checker.go
@@ -120,9 +120,12 @@ type Composition struct {
 // Took is the time of each part of a check in integer milliseconds (ADR 0447 clause 3): waiting in the queue, cloning,
 // the unit level, the integration level's setup and its running, and the composition.
 type Took struct {
-	Queue            int64 `json:"queue"`
-	Clone            int64 `json:"clone"`
-	Unit             int64 `json:"unit"`
+	Queue int64 `json:"queue"`
+	Clone int64 `json:"clone"`
+	Unit  int64 `json:"unit"`
+	// Lint is the unit level's gofmt and go vet before its tests (ADR 0529 §1; issue 1887 D7-go); absent from a verdict
+	// of a build module that runs none.
+	Lint             int64 `json:"lint,omitempty"`
 	IntegrationSetup int64 `json:"integration-setup"`
 	IntegrationRun   int64 `json:"integration-run"`
 	Composition      int64 `json:"composition"`