diff --git a/src/main/java/com/eactive/eai/custom/message/GUIDGeneratorDJB.java b/src/main/java/com/eactive/eai/custom/message/GUIDGeneratorDJB.java
index 68a2a7d..687dbb8 100644
--- a/src/main/java/com/eactive/eai/custom/message/GUIDGeneratorDJB.java
+++ b/src/main/java/com/eactive/eai/custom/message/GUIDGeneratorDJB.java
@@ -28,7 +28,7 @@ public final class GUIDGeneratorDJB {
 
     static {
         // 노드번호(2): 서버명 마지막 2자리, 없으면 "00"
-        String serverName = System.getProperty("server.key", "");
+        String serverName = System.getProperty(com.eactive.eai.common.server.Keys.SERVER_KEY, "");
         if (serverName.length() >= 2) {
             NODE_NO = serverName.substring(serverName.length() - 2);
         } else {