diff --git a/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/RegisterExecutor.java b/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/RegisterExecutor.java
index cca8b17c4f129934016584092cb7c403cef49033..167ef33104227f62e5eff5684b23217f7a3430ae 100644
--- a/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/RegisterExecutor.java
+++ b/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/RegisterExecutor.java
@@ -27,7 +27,7 @@ import static org.apache.spark.network.shuffle.protocol.BlockTransferMessage.Typ
 
 /**
  * Initial registration message between an executor and its local shuffle server.
- * Returns nothing (empty bye array).
+ * Returns nothing (empty byte array).
  */
 public class RegisterExecutor extends BlockTransferMessage {
   public final String appId;