diff --git a/redisson/src/main/java/org/redisson/pubsub/PublishSubscribeService.java b/redisson/src/main/java/org/redisson/pubsub/PublishSubscribeService.java
index aec380981..dbe39ca9c 100644
--- a/redisson/src/main/java/org/redisson/pubsub/PublishSubscribeService.java
+++ b/redisson/src/main/java/org/redisson/pubsub/PublishSubscribeService.java
@@ -66,7 +66,7 @@ public class PublishSubscribeService {
 
     private final ConcurrentMap<ChannelName, PubSubConnectionEntry> name2PubSubConnection = new ConcurrentHashMap<>();
 
-    private final ConcurrentMap<MasterSlaveEntry, Queue<PubSubConnectionEntry>> freePubSubMap = new ConcurrentHashMap<>();
+    private final ConcurrentMap<MasterSlaveEntry, Queue<PubSubConnectionEntry>> entry2PubSubConnection = new ConcurrentHashMap<>();
 
     private final Queue<PubSubConnectionEntry> emptyQueue = new LinkedList<>();
 
@@ -219,7 +219,7 @@ public class PublishSubscribeService {
     private Queue<PubSubConnectionEntry> getConnectionsQueue(ChannelName channelName) {
         int slot = connectionManager.calcSlot(channelName.getName());
         MasterSlaveEntry entry = connectionManager.getEntry(slot);
-        return freePubSubMap.getOrDefault(entry, emptyQueue);
+        return entry2PubSubConnection.getOrDefault(entry, emptyQueue);
     }
 
     private RFuture<Void> addListeners(ChannelName channelName, RPromise<PubSubConnectionEntry> promise,
@@ -384,7 +384,7 @@ public class PublishSubscribeService {
     }
 
     public void remove(MasterSlaveEntry entry) {
-        freePubSubMap.remove(entry);
+        entry2PubSubConnection.remove(entry);
     }
 
     public RFuture<Codec> unsubscribe(ChannelName channelName, PubSubType topicType) {
@@ -497,7 +497,7 @@ public class PublishSubscribeService {
     private void addFreeConnectionEntry(ChannelName channelName, PubSubConnectionEntry entry) {
         int slot = connectionManager.calcSlot(channelName.getName());
         MasterSlaveEntry me = connectionManager.getEntry(slot);
-        Queue<PubSubConnectionEntry> freePubSubConnections = freePubSubMap.computeIfAbsent(me, e -> new ConcurrentLinkedQueue<>());
+        Queue<PubSubConnectionEntry> freePubSubConnections = entry2PubSubConnection.computeIfAbsent(me, e -> new ConcurrentLinkedQueue<>());
         freePubSubConnections.add(entry);
     }
 
@@ -523,7 +523,7 @@ public class PublishSubscribeService {
     }
 
     public void reattachPubSub(RedisPubSubConnection redisPubSubConnection) {
-        for (Queue<PubSubConnectionEntry> queue : freePubSubMap.values()) {
+        for (Queue<PubSubConnectionEntry> queue : entry2PubSubConnection.values()) {
             for (PubSubConnectionEntry entry : queue) {
                 if (entry.getConnection().equals(redisPubSubConnection)) {
                     freePubSubLock.acquire(new Runnable() {
@@ -602,7 +602,7 @@ public class PublishSubscribeService {
 
     @Override
     public String toString() {
-        return "PublishSubscribeService [name2PubSubConnection=" + name2PubSubConnection + ", freePubSubMap=" + freePubSubMap + "]";
+        return "PublishSubscribeService [name2PubSubConnection=" + name2PubSubConnection + ", entry2PubSubConnection=" + entry2PubSubConnection + "]";
     }
 
 }