diff --git a/vllm_omni/platforms/npu/platform.py b/vllm_omni/platforms/npu/platform.py
index c40dd6fea18..53ffe6775a5 100644
--- a/vllm_omni/platforms/npu/platform.py
+++ b/vllm_omni/platforms/npu/platform.py
@@ -69,6 +69,9 @@ def get_diffusion_attn_backend_cls(
 
         # Try FLASH_ATTN if mindiesd is available, otherwise fall back to SDPA
         if find_spec("mindiesd"):
+            # Configure ASCEND_CUSTOM_OPP_PATH for mindiesd custom ops upon import
+            import mindiesd  # noqa: F401
+
             logger.info("Defaulting to diffusion attention backend FLASH_ATTN")
             return DiffusionAttentionBackendEnum.FLASH_ATTN.get_path()