diff --git a/computility-run.yaml b/computility-run.yaml
index b009c3fb..7d356832 100644
--- a/computility-run.yaml
+++ b/computility-run.yaml
@@ -49,4 +49,6 @@ env:
       value: '1'
     - name: PYTORCH_CUDA_ALLOC_CONF
       value: max_split_size_mb:512
+    - name: LD_PRELOAD
+      value: /workspace/qwen3_6_scripts/cccl_preload/libcccl_allocator.so