diff --git a/robot-sdk/src/main/java/org/mvnsearch/wx/WeixinUtils.java b/robot-sdk/src/main/java/org/mvnsearch/wx/WeixinUtils.java
index e8c945d..6a10521 100644
--- a/robot-sdk/src/main/java/org/mvnsearch/wx/WeixinUtils.java
+++ b/robot-sdk/src/main/java/org/mvnsearch/wx/WeixinUtils.java
@@ -61,7 +61,7 @@ private static WeixinMessage constructMsg(Document document) {
         }
         //event message
         if ("event".equals(msg.getType())) {
-            String event = rootElement.getChildText("EventKey");
+            String event = rootElement.getChildText("Event");
             String eventKey = rootElement.getChildText("EventKey");
             msg.setType(event);
             msg.setContent(eventKey);