diff --git a/python/sglang/srt/managers/cache_controller.py b/python/sglang/srt/managers/cache_controller.py
index c36a4aa37..07cc92563 100644
--- a/python/sglang/srt/managers/cache_controller.py
+++ b/python/sglang/srt/managers/cache_controller.py
@@ -647,11 +647,6 @@ class HiCacheController:
             if prefix_keys and len(prefix_keys) > 0:
                 prefix_keys += batch_hashes
 
-        # release pre-allocated memory
-        self.append_host_mem_release(
-            operation.host_indices[operation.completed_tokens :]
-        )
-
     def prefetch_io_aux_func(self):
         """
         Auxiliary function conducting IO operations for prefetching.