diff --git a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java
index 50b64c91..1ed7dc68 100644
--- a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java
+++ b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java
@@ -46,12 +46,12 @@ public class ConnectNodeVisitor extends ValueNodeRecursiveVisitor<IndexNode> {
 				continue;
 			}
 			// IMPORTANT: append REVERSED parent path but not parent id, because:
-			// 1. We're walking the tree up
+			// 1. We're walking up the tree
 			// 2. The dest parent node may not be the tree root
 			if (destParentNode != null)
 				path = path.append(destParentNode.path().reverse());
 		}
-		// reserve the path because we're walking up the tree while building the path  
+		// reserve the path because we're walking up the tree while building the path
 		return path.reverse();
 	}