diff --git a/dsv4/kernels/router/nvfp4_fused_router_kernel.py b/dsv4/kernels/router/nvfp4_fused_router_kernel.py
index 9f88dbec..fed39c77 100644
--- a/dsv4/kernels/router/nvfp4_fused_router_kernel.py
+++ b/dsv4/kernels/router/nvfp4_fused_router_kernel.py
@@ -308,7 +308,7 @@ class Nvfp4FusedRouterKernel:
 
             tile_sched_params = utils.PersistentTileSchedulerParams(
                 (cutlass.Int32(num_M_tiles), cutlass.Int32(num_N_tiles), cutlass.Int32(1)),
-                (cutlass.Int32(self.cluster_shape_mn[0]), cutlass.Int32(self.cluster_shape_mn[1]), cutlass.Int32(1)))
+                (1, 1, 1))
 
             self._kernel(
                 tiled_mma, tiled_mma_sfb,