diff --git a/backend/app/xinference/base.py b/backend/app/xinference/base.py
index 374c2ca..f256ec8 100644
--- a/backend/app/xinference/base.py
+++ b/backend/app/xinference/base.py
@@ -224,8 +224,8 @@ class XinferenceRerank(BaseNodePostprocessor):
 
                 if self.top_n is not None:
                     if len(new_nodes) > self.top_n:
-                        for index in new_nodes[5:-1]:
-                            new_nodes.remove(-1)
+                        for index in new_nodes[self.top_n:-1]:
+                            new_nodes.remove(index)
 
             event.on_end(payload={EventPayload.NODES: new_nodes})