diff --git a/desktop/plugins/public/ui-debugger/components/Tree.tsx b/desktop/plugins/public/ui-debugger/components/Tree.tsx
index b56fe3499..821a7f44c 100644
--- a/desktop/plugins/public/ui-debugger/components/Tree.tsx
+++ b/desktop/plugins/public/ui-debugger/components/Tree.tsx
@@ -486,6 +486,12 @@ function toTreeNodes(
     }
   }
 
+  //always trim last indent guide
+  const prevItemLine = last(treeNodes)?.indentGuide;
+  if (prevItemLine != null) {
+    prevItemLine.trimBottom = true;
+  }
+
   return treeNodes;
 }