diff --git a/vllm/model_executor/layers/fused_moe/experts/cutlass_moe.py b/vllm/model_executor/layers/fused_moe/experts/cutlass_moe.py
index 80c6926fd4..402077b017 100644
--- a/vllm/model_executor/layers/fused_moe/experts/cutlass_moe.py
+++ b/vllm/model_executor/layers/fused_moe/experts/cutlass_moe.py
@@ -477,14 +477,12 @@ class CutlassBatchedExpertsFp8(CutlassExpertsFp8Base):
         expert_tokens_meta: mk.ExpertTokensMetadata | None,
         activation: MoEActivation,
     ) -> tuple[tuple[int, ...], tuple[int, ...], tuple[int, ...]]:
-        num_dp = self.num_dispatchers
-        assert num_dp is not None
         experts_per_worker = self.moe_config.num_local_experts
         activation_out_dim = self.adjust_N_for_activation(N, activation)
-        workspace1 = (experts_per_worker, M * num_dp, max(N, K))
+        workspace1 = (experts_per_worker, M, max(N, K))
         workspace2 = (
             experts_per_worker,
-            M * num_dp,
+            M,
             max(activation_out_dim, K),
         )
         output = (experts_per_worker, M, K)