diff --git a/include/ck_tile/ops/fmha/pipeline/block_fmha_fwd_splitkv_combine_pipeline_default_policy.hpp b/include/ck_tile/ops/fmha/pipeline/block_fmha_fwd_splitkv_combine_pipeline_default_policy.hpp
index 5888534467..9d959c5298 100644
--- a/include/ck_tile/ops/fmha/pipeline/block_fmha_fwd_splitkv_combine_pipeline_default_policy.hpp
+++ b/include/ck_tile/ops/fmha/pipeline/block_fmha_fwd_splitkv_combine_pipeline_default_policy.hpp
@@ -87,7 +87,7 @@ struct BlockFmhaFwdSplitKVCombinePipelineDefaultPolicy
     template <typename Problem>
     CK_TILE_HOST_DEVICE static constexpr ck_tile::index_t GetSmemSize()
     {
-        return GetSmemSizeLSEacc<Problem>() + GetSmemSizeOacc4<Problem>();
+        return GetSmemSizeLSEacc<Problem>();
     }
 
     // shape=[kMaxSplits, kM0]