diff --git a/prow/cmd/sinker/main.go b/prow/cmd/sinker/main.go
index <HASH>..<HASH> 100644
--- a/prow/cmd/sinker/main.go
+++ b/prow/cmd/sinker/main.go
@@ -107,7 +107,7 @@ func main() {
 	cfg := configAgent.Config
 
 	pushGateway := cfg().PushGateway
-	metrics.ExposeMetrics("sinker", pushGateway.Endpoint, pushGateway.Interval)
+	metrics.ExposeMetrics("sinker", pushGateway.Endpoint, pushGateway.Interval.Duration)
 
 	prowJobClient, err := o.kubernetes.ProwJobClient(cfg().ProwJobNamespace, o.dryRun.Value)
 	if err != nil {
Fix pushGateway.Interval.Duration after rebase