diff --git a/src/main/java/org/redisson/CommandExecutorService.java b/src/main/java/org/redisson/CommandExecutorService.java
index 04c496da5..d81440d50 100644
--- a/src/main/java/org/redisson/CommandExecutorService.java
+++ b/src/main/java/org/redisson/CommandExecutorService.java
@@ -438,7 +438,7 @@ public class CommandExecutorService implements CommandExecutor {
             }
         };
 
-        ex.set(new RedisTimeoutException());
+        ex.set(new RedisTimeoutException("Command execution timeout for " + command + " with params " + Arrays.toString(params)));
         final Timeout timeout = connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getTimeout(), TimeUnit.MILLISECONDS);
 
         final Future<RedisConnection> connectionFuture;
diff --git a/src/main/java/org/redisson/client/protocol/RedisCommand.java b/src/main/java/org/redisson/client/protocol/RedisCommand.java
index 446ef9dd1..bd4cb7c2f 100644
--- a/src/main/java/org/redisson/client/protocol/RedisCommand.java
+++ b/src/main/java/org/redisson/client/protocol/RedisCommand.java
@@ -226,7 +226,7 @@ public class RedisCommand<R> {
 
     @Override
     public String toString() {
-        return "RedisCommand [" + name + " " + subName != null ? subName : "" + "]";
+        return "RedisCommand [" + name + (subName != null ? " " + subName : "") + "]";
     }
 
 }