diff --git a/cmd/proxy-to-grafana/proxy-to-grafana.go b/cmd/proxy-to-grafana/proxy-to-grafana.go
index 7e5d580c7..b9f3c7e9b 100644
--- a/cmd/proxy-to-grafana/proxy-to-grafana.go
+++ b/cmd/proxy-to-grafana/proxy-to-grafana.go
@@ -84,7 +84,7 @@ func main() {
 	if *useHTTPS {
 		ln, err = ts.Listen("tcp", ":443")
 		ln = tls.NewListener(ln, &tls.Config{
-			GetCertificate: tailscale.GetCertificate,
+			GetCertificate: localClient.GetCertificate,
 		})
 
 		go func() {