diff --git a/src/Grafoscopio/GrafoscopioNewNotebook.class.st b/src/Grafoscopio/GrafoscopioNewNotebook.class.st
index 9d8e4f7..a884fdb 100644
--- a/src/Grafoscopio/GrafoscopioNewNotebook.class.st
+++ b/src/Grafoscopio/GrafoscopioNewNotebook.class.st
@@ -552,7 +552,9 @@ GrafoscopioNewNotebook >> initializeWidgets [
 	body autoAccept: true.
 	links := self newTextInput.
 	tree := self newTreeTable.
-	tree addColumn: (SpStringTableColumn evaluated: #title).
+	tree
+		addColumn: (SpStringTableColumn evaluated: #title);
+		children: [ : node | node children ].
 	"	tree
 		childrenBlock: [ :node | node children value ];
 		displayBlock: [ :node | node title value ]."
@@ -560,8 +562,7 @@ GrafoscopioNewNotebook >> initializeWidgets [
 		add: tree;
 		add: header;
 		add: body;
-		add: links.
-
+		add: links
 ]
 
 { #category : #persistence }