diff --git a/plugin/metrics/prometheus/metricsstore/reader.go b/plugin/metrics/prometheus/metricsstore/reader.go
index c7ed699cd5c..a44ce33d51a 100644
--- a/plugin/metrics/prometheus/metricsstore/reader.go
+++ b/plugin/metrics/prometheus/metricsstore/reader.go
@@ -5,7 +5,6 @@ package metricsstore
 
 import (
 	"context"
-	"crypto/tls"
 	"fmt"
 	"net"
 	"net/http"