diff --git a/go/vt/servenv/exporter.go b/go/vt/servenv/exporter.go
index 1b148b63103..7adb3e18f2c 100644
--- a/go/vt/servenv/exporter.go
+++ b/go/vt/servenv/exporter.go
@@ -106,6 +106,10 @@ type Exporter struct {
 	mu          sync.Mutex
 }
 
+func init() {
+	HTTPHandle("/debug/vars", expvar.Handler())
+}
+
 // NewExporter creates a new Exporter with name as namespace.
 // label is the name of the additional dimension for the stats vars.
 func NewExporter(name, label string) *Exporter {