diff --git a/common/src/main/java/com/xypower/common/MicroPhotoContext.java b/common/src/main/java/com/xypower/common/MicroPhotoContext.java
index 015641cb..275ceb5d 100644
--- a/common/src/main/java/com/xypower/common/MicroPhotoContext.java
+++ b/common/src/main/java/com/xypower/common/MicroPhotoContext.java
@@ -298,7 +298,7 @@ public class MicroPhotoContext {
                 String content = FilesUtils.readTextFile(path);
 
                 JSONObject jsonObject = TextUtils.isEmpty(content) ? new JSONObject() : new JSONObject(content);
-                appConfig.cmdid = jsonObject.optString(jsonObject.has("cmdid") ? "cmdid" : "CMDID", "");
+                appConfig.cmdid = jsonObject.optString(jsonObject.has("CMDID") ? "CMDID" : "cmdid", "");
                 appConfig.server = jsonObject.optString(jsonObject.has("server") ? "server" : "Server", "");
                 appConfig.port = jsonObject.optInt(jsonObject.has("port") ? "port" : "Port", 0);
                 appConfig.protocol = jsonObject.optInt(jsonObject.has("protocol") ? "protocol" : "Protocol", DEFAULT_PROTOCOL);