diff --git a/sentinel.go b/sentinel.go
index d40ceaf..c10a26c 100644
--- a/sentinel.go
+++ b/sentinel.go
@@ -372,7 +372,8 @@ func (c *sentinelFailover) masterAddr() (string, error) {
 
 	for i, sentinelAddr := range c.sentinelAddrs {
 		sentinel := NewSentinelClient(&Options{
-			Addr: sentinelAddr,
+			Addr:   sentinelAddr,
+			Dialer: c.opt.Dialer,
 
 			Password: c.password,