diff --git a/plugins/redis/redis.go b/plugins/redis/redis.go
index 6f2648c7b..e936ae723 100644
--- a/plugins/redis/redis.go
+++ b/plugins/redis/redis.go
@@ -186,7 +186,7 @@ func (g *Redis) gatherServer(addr *url.URL, acc plugins.Accumulator) error {
 			continue
 		}
 
-		tags := map[string]string{"host": addr}
+		tags := map[string]string{"host": addr.String()}
 		val := strings.TrimSpace(parts[1])
 
 		ival, err := strconv.ParseUint(val, 10, 64)