diff --git a/redisson/src/main/java/org/redisson/client/handler/PingConnectionHandler.java b/redisson/src/main/java/org/redisson/client/handler/PingConnectionHandler.java
index 39f6e7773..2999e25c6 100644
--- a/redisson/src/main/java/org/redisson/client/handler/PingConnectionHandler.java
+++ b/redisson/src/main/java/org/redisson/client/handler/PingConnectionHandler.java
@@ -72,6 +72,9 @@ public class PingConnectionHandler extends ChannelInboundHandlerAdapter {
         config.getTimer().newTimeout(new TimerTask() {
             @Override
             public void run(Timeout timeout) throws Exception {
+                if (connection.isClosed()) {
+                    return;
+                }
                 if (future != null
                         && (future.cancel(false) || !future.isSuccess())) {
                     ctx.channel().close();