diff --git a/functions/r2-pump/main.go b/functions/r2-pump/main.go
index 5bdce6e..6681cc2 100644
--- a/functions/r2-pump/main.go
+++ b/functions/r2-pump/main.go
@@ -133,7 +133,7 @@ func Invoke(ctx context.Context, e gcp.GCSEvent) error {
 	if err := audit.WroteR2(ctx, pkgName, version, keys, FILE_EXTENSION); err != nil {
 		log.Printf("failed to audit: %s\n", err)
 	}
-	if err := metrics.NewUpdatePublishedR2(); err != nil {
+	if err := metrics.NewUpdatePublishedR2(FILE_EXTENSION); err != nil {
 		return errors.Wrap(err, "could not report metrics")
 	}
 
diff --git a/metrics/metrics.go b/metrics/metrics.go
index c2404c9..15ca109 100644
--- a/metrics/metrics.go
+++ b/metrics/metrics.go
@@ -19,36 +19,42 @@ var (
 )
 
 type IncMetricPayload struct {
-	Name string `json:"name"`
+	Name   string   `json:"name"`
+	Labels []string `json:"labels"`
 }
 
 func NewUpdateDetected() error {
 	return sendMetrics(&IncMetricPayload{
-		Name: "new_update_detected",
+		Name:   "new_update_detected",
+		Labels: make([]string, 0),
 	})
 }
 
 func NewUpdateProccessed() error {
 	return sendMetrics(&IncMetricPayload{
-		Name: "new_update_processed",
+		Name:   "new_update_processed",
+		Labels: make([]string, 0),
 	})
 }
 
 func NewUpdatePublishedKV() error {
 	return sendMetrics(&IncMetricPayload{
-		Name: "new_update_published_kv",
+		Name:   "new_update_published_kv",
+		Labels: make([]string, 0),
 	})
 }
 
-func NewUpdatePublishedR2() error {
+func NewUpdatePublishedR2(ext string) error {
 	return sendMetrics(&IncMetricPayload{
-		Name: "new_update_published_r2",
+		Name:   "new_update_published_r2",
+		Labels: []string{ext},
 	})
 }
 
 func NewUpdatePublishedAlgolia() error {
 	return sendMetrics(&IncMetricPayload{
-		Name: "new_update_published_algolia",
+		Name:   "new_update_published_algolia",
+		Labels: make([]string, 0),
 	})
 }