diff --git a/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java b/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
index 516719543..1b4a4517f 100755
--- a/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
+++ b/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
@@ -147,12 +147,12 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
                     String ip = map.get("ip");
                     String port = map.get("port");
 
-                    RedisURI sentinelAddr = convert(ip, port);
+                    RedisURI sentinelAddr = toURI(ip, port);
                     RFuture<Void> future = registerSentinel(sentinelAddr, this.config);
                     connectionFutures.add(future);
                 }
                 
-                RedisURI currentAddr = convert(client.getAddr().getAddress().getHostAddress(), "" + client.getAddr().getPort());
+                RedisURI currentAddr = toURI(client.getAddr().getAddress().getHostAddress(), "" + client.getAddr().getPort());
                 RFuture<Void> f = registerSentinel(currentAddr, this.config);
                 connectionFutures.add(f);
                 
@@ -263,7 +263,7 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
                             }
                             
                             Set<RedisURI> newUris = future.getNow().stream()
-                                                .map(addr -> convert(addr.getAddress().getHostAddress(), "" + addr.getPort()))
+                                                .map(addr -> toURI(addr.getAddress().getHostAddress(), "" + addr.getPort()))
                                                 .collect(Collectors.toSet());
 
                             for (RedisURI uri : newUris) {
@@ -449,11 +449,11 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
             }).map(m -> {
                 String ip = m.get("ip");
                 String port = m.get("port");
-                return convert(ip, port);
+                return toURI(ip, port);
             }).collect(Collectors.toSet());
             
             InetSocketAddress addr = connection.getRedisClient().getAddr();
-            RedisURI currentAddr = convert(addr.getAddress().getHostAddress(), "" + addr.getPort());
+            RedisURI currentAddr = toURI(addr.getAddress().getHostAddress(), "" + addr.getPort());
             newUris.add(currentAddr);
             
             updateSentinels(newUris);
@@ -480,8 +480,13 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
         }
     }
 
+    private RedisURI toURI(String host, String port) {
+        RedisURI uri = new RedisURI(scheme + "://" + host + ":" + port);
+        return applyNatMap(uri);
+    }
+
     private String createAddress(String host, String port) {
-        return scheme + "://" + applyNatMap(host, Integer.valueOf(port));
+        return toURI(host, port).toString();
     }
 
     @Override
@@ -538,7 +543,7 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
         RPromise<Void> result = new RedissonPromise<Void>();
         // to avoid addition twice
         MasterSlaveEntry entry = getEntry(singleSlotRange.getStartSlot());
-        RedisURI uri = convert(ip, port);
+        RedisURI uri = toURI(ip, port);
         if (!entry.hasSlave(uri) && !config.checkSkipSlavesInit()) {
             RFuture<Void> future = entry.addSlave(new RedisURI(addr));
             future.onComplete((res, e) -> {
@@ -563,18 +568,12 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
         return result;
     }
 
-    private RedisURI convert(String ip, String port) {
-        String addr = createAddress(ip, port);
-        RedisURI uri = new RedisURI(addr);
-        return uri;
-    }
-    
     private void slaveDown(String ip, String port) {
         if (config.checkSkipSlavesInit()) {
             log.warn("slave: {}:{} has down", ip, port);
         } else {
             MasterSlaveEntry entry = getEntry(singleSlotRange.getStartSlot());
-            RedisURI uri = convert(ip, port);
+            RedisURI uri = toURI(ip, port);
             if (entry.slaveDown(uri, FreezeReason.MANAGER)) {
                 log.warn("slave: {}:{} has down", ip, port);
             }
@@ -598,7 +597,7 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
             return;
         }
 
-        RedisURI uri = convert(ip, port);
+        RedisURI uri = toURI(ip, port);
         if (getEntry(singleSlotRange.getStartSlot()).slaveUp(uri, FreezeReason.MANAGER)) {
             String slaveAddr = ip + ":" + port;
             log.info("slave: {} has up", slaveAddr);
@@ -635,15 +634,17 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
         super.shutdown();
     }
 
-    private String applyNatMap(String ip, int port) {
-        String mappedAddress = natMap.get(ip + ":" + port);
-        if (mappedAddress == null && natMap.get(ip) != null) {
-            mappedAddress = natMap.get(ip) + ":" + port;
+    @Override
+    public RedisURI applyNatMap(RedisURI address) {
+        String mappedAddress = natMap.get(address.getHost() + ":" + address.getPort());
+        if (mappedAddress == null && natMap.get(address.getHost()) != null) {
+            mappedAddress = natMap.get(address.getHost()) + ":" + address.getPort();
         }
         if (mappedAddress != null) {
-            return mappedAddress;
+            return new RedisURI(address.getScheme() + "://" + mappedAddress);
         }
-        return ip + ":" + port;
+        return address;
     }
+
 }