diff --git a/metrics/prometheus/collector.go b/metrics/prometheus/collector.go
index 22f2d2f02a701..23934b212c230 100644
--- a/metrics/prometheus/collector.go
+++ b/metrics/prometheus/collector.go
@@ -116,5 +116,5 @@ func (c *collector) writeSummaryPercentile(name, p string, value interface{}) {
 }
 
 func mutateKey(key string) string {
-	return strings.Replace(key, "/", "_", -1)
+	return strings.ReplaceAll(key, "/", "_")
 }