diff --git a/src/main/java/io/github/linwancen/plugin/show/Tree.java b/src/main/java/io/github/linwancen/plugin/show/Tree.java
index 67c9d8f..2353d35 100644
--- a/src/main/java/io/github/linwancen/plugin/show/Tree.java
+++ b/src/main/java/io/github/linwancen/plugin/show/Tree.java
@@ -145,9 +145,7 @@ public class Tree implements ProjectViewNodeDecorator {
             if (parent == null) {
                 return null;
             }
-            if (parent.getChildren().length != 1) {
-                return null;
-            }
+            // PsiPackage not implemented getChildren()
             child = parent;
         }
     }