diff --git a/python/sglang/srt/disaggregation/mooncake/conn.py b/python/sglang/srt/disaggregation/mooncake/conn.py
index 282a49ba8..3fe895ed1 100644
--- a/python/sglang/srt/disaggregation/mooncake/conn.py
+++ b/python/sglang/srt/disaggregation/mooncake/conn.py
@@ -288,12 +288,11 @@ class MooncakeKVManager(CommonKVManager):
             src_kv_ptrs, dst_kv_ptrs, layers_current_pp_stage = (
                 self.get_mla_kv_ptrs_with_pp(src_data_ptrs, dst_data_ptrs)
             )
-            kv_item_len = item_lens[0]
             layers_params = [
                 (
                     src_kv_ptrs[layer_id],
                     dst_kv_ptrs[layer_id],
-                    kv_item_len,
+                    item_lens[layer_id],
                 )
                 for layer_id in range(layers_current_pp_stage)
             ]
@@ -301,19 +300,18 @@ class MooncakeKVManager(CommonKVManager):
             src_k_ptrs, src_v_ptrs, dst_k_ptrs, dst_v_ptrs, layers_current_pp_stage = (
                 self.get_mha_kv_ptrs_with_pp(src_data_ptrs, dst_data_ptrs)
             )
-            kv_item_len = item_lens[0]
             layers_params = [
                 (
                     src_k_ptrs[layer_id],
                     dst_k_ptrs[layer_id],
-                    kv_item_len,
+                    item_lens[layer_id],
                 )
                 for layer_id in range(layers_current_pp_stage)
             ] + [
                 (
                     src_v_ptrs[layer_id],
                     dst_v_ptrs[layer_id],
-                    kv_item_len,
+                    item_lens[layer_id],
                 )
                 for layer_id in range(layers_current_pp_stage)
             ]