diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/tree/ArchiveFileTree.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/tree/ArchiveFileTree.java
index f96b898c4..57db1c5e6 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/tree/ArchiveFileTree.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/tree/ArchiveFileTree.java
@@ -129,10 +129,10 @@ public abstract class ArchiveFileTree<R, E extends ArchiveEntry> implements Clos
         }
 
         if (entry.isDirectory()) {
-            if (dir.entry != null) {
-                throw new IOException("Duplicate entry: " + entry.getName());
-            }
-            dir.entry = entry;
+            if (dir.entry == null)
+                dir.entry = entry;
+            else if (!dir.entry.isDirectory())
+                throw new IOException("A file and a directory have the same name: " + entry.getName());
         } else {
             String fileName = path[path.length - 1];