diff --git a/src/nvfp4_megamoe_kernel/cutlass_nvfp4_gemm/cutlass_nvfp4_gemm.cu b/src/nvfp4_megamoe_kernel/cutlass_nvfp4_gemm/cutlass_nvfp4_gemm.cu
index 62089d11..855810cd 100644
--- a/src/nvfp4_megamoe_kernel/cutlass_nvfp4_gemm/cutlass_nvfp4_gemm.cu
+++ b/src/nvfp4_megamoe_kernel/cutlass_nvfp4_gemm/cutlass_nvfp4_gemm.cu
@@ -143,11 +143,9 @@ __global__ void remap_sf_to_cutlass_kernel(
     // For SFB: logical coord is (n, k_element, l)
     // k_element = k_sf * InputSFVectorSize (convert SF group to K element)
     if constexpr (LayoutRank == 2) {
-        auto logical_coord = cute::make_coord(mn, k_sf * InputSFVectorSize);
-        dst_idx = cute::crd2idx(logical_coord, layout_sf);
+        dst_idx = layout_sf(cute::make_coord(mn, k_sf * InputSFVectorSize));
     } else if constexpr (LayoutRank == 3) {
-        auto logical_coord = cute::make_coord(mn, k_sf * InputSFVectorSize, 0);
-        dst_idx = cute::crd2idx(logical_coord, layout_sf);
+        dst_idx = layout_sf(cute::make_coord(mn, k_sf * InputSFVectorSize, 0));
     }
 
     int src_idx = mn * src_stride_mn + k_sf * src_stride_ksf;