diff --git a/src/main/java/com/loafle/bridge/discoveryport/constant/DirectionType.java b/src/main/java/com/loafle/bridge/discoveryport/constant/DirectionType.java
index eaf430b..9592114 100644
--- a/src/main/java/com/loafle/bridge/discoveryport/constant/DirectionType.java
+++ b/src/main/java/com/loafle/bridge/discoveryport/constant/DirectionType.java
@@ -5,7 +5,8 @@ package com.loafle.bridge.discoveryport.constant;
  */
 public enum DirectionType {
     Send("S"),
-    Recv("R");
+    Recv("R"),
+    Timeout("T");
 
     private String stringValue;
     DirectionType(String string) {stringValue = string;}