diff --git a/setup_cython.py b/setup_cython.py
index dca79af61a9f6..30848fa042d8b 100644
--- a/setup_cython.py
+++ b/setup_cython.py
@@ -18,6 +18,7 @@
     "vllm/core/scheduler.py",
     "vllm/sequence.py",
     "vllm/core/block_manager_v1.py",
+    "vllm/core/block_manager_v2.py",
 ]
 
 infiles += [