diff --git a/include/ck_tile/ops/fused_moe/kernel/moe_sorting_kernel.hpp b/include/ck_tile/ops/fused_moe/kernel/moe_sorting_kernel.hpp
index 07eda483d2..7d766bbe67 100644
--- a/include/ck_tile/ops/fused_moe/kernel/moe_sorting_kernel.hpp
+++ b/include/ck_tile/ops/fused_moe/kernel/moe_sorting_kernel.hpp
@@ -1685,7 +1685,7 @@ struct MoeSortingMultiPhaseKernel_P0_v1
                 IndexType eid = x[j.value]; // ext_vector_type must use int to []
                 uint32_t curr_token_id, curr_topk_id;
                 kargs.topk_mdiv.divmod(i * Problem::SubTokenTile + j, curr_token_id, curr_topk_id);
-                if(eid < kargs.num_experts)
+                if(eid < kargs.num_experts && eid >= 0)
                 {
                     if constexpr(Problem::LocalToken)
                     {