diff --git a/libbeat/outputs/redis/backoff.go b/libbeat/outputs/redis/backoff.go
index b3470725a92..7c63574d92f 100644
--- a/libbeat/outputs/redis/backoff.go
+++ b/libbeat/outputs/redis/backoff.go
@@ -112,3 +112,7 @@ func (b *backoffClient) resetFail() {
 	b.reason = failNone
 	b.backoff.Reset()
 }
+
+func (b *backoffClient) String() string {
+	return b.client.String()
+}