diff --git a/dsv4/kernels/router/dense_router_decode_kernel.py b/dsv4/kernels/router/dense_router_decode_kernel.py
index 4941ff3b..31a5b326 100644
--- a/dsv4/kernels/router/dense_router_decode_kernel.py
+++ b/dsv4/kernels/router/dense_router_decode_kernel.py
@@ -101,8 +101,8 @@ class DenseRouterDecodeKernel:
         self.num_tmem_alloc_cols = utils.get_num_tmem_alloc_cols(tCtAcc_fake)
 
     def run(self, X, W_gate, e_bias, out_w, out_ids, M, E, K, scaling, top_k, stream=None):
-        self.a_major_mode = tcgen05.OperandMajorMode.MAJOR_K
-        self.b_major_mode = tcgen05.OperandMajorMode.MAJOR_K
+        self.a_major_mode = tcgen05.OperandMajorMode.K
+        self.b_major_mode = tcgen05.OperandMajorMode.K
         self._setup_attributes()
 
         X_cu = cutlass_torch.to_cuTe_tensor(X, major_mode=self.a_major_mode)