diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java b/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
index 7fe1f20b..4592d43d 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
@@ -860,7 +860,7 @@ public class AppMaster {
     private void deleteFile(String path) {
         try {
             File file = new File(path);
-            if (file.exists() && file.isFile()) {
+            if (file.exists()) {
                 file.delete();
             }
         } catch (Exception ex) {