diff --git a/cpp/src/join/mixed_join_size_kernel.cuh b/cpp/src/join/mixed_join_size_kernel.cuh
index 4049ccf35e1..98170ed719a 100644
--- a/cpp/src/join/mixed_join_size_kernel.cuh
+++ b/cpp/src/join/mixed_join_size_kernel.cuh
@@ -62,8 +62,8 @@ CUDF_KERNEL void __launch_bounds__(block_size)
     intermediate_storage + (threadIdx.x * device_expression_data.num_intermediates);
 
   std::size_t thread_counter{0};
-  cudf::size_type const start_idx      = threadIdx.x + blockIdx.x * block_size;
-  cudf::size_type const stride         = block_size * gridDim.x;
+  auto const start_idx                 = cudf::detail::grid_1d::global_thread_id();
+  auto const stride                    = cudf::detail::grid_1d::grid_stride();
   cudf::size_type const left_num_rows  = left_table.num_rows();
   cudf::size_type const right_num_rows = right_table.num_rows();
   auto const outer_num_rows            = (swap_tables ? right_num_rows : left_num_rows);
@@ -80,7 +80,7 @@ CUDF_KERNEL void __launch_bounds__(block_size)
   auto count_equality = pair_expression_equality<has_nulls>{
     evaluator, thread_intermediate_storage, swap_tables, equality_probe};
 
-  for (cudf::size_type outer_row_index = start_idx; outer_row_index < outer_num_rows;
+  for (auto outer_row_index = start_idx; outer_row_index < outer_num_rows;
        outer_row_index += stride) {
     auto query_pair = pair_func(outer_row_index);
     if (join_type == join_kind::LEFT_JOIN || join_type == join_kind::FULL_JOIN) {
diff --git a/cpp/src/json/json_path.cu b/cpp/src/json/json_path.cu
index fd8629ed6f3..e6e01b9c9fe 100644
--- a/cpp/src/json/json_path.cu
+++ b/cpp/src/json/json_path.cu
@@ -928,7 +928,7 @@ __launch_bounds__(block_size) CUDF_KERNEL
                               get_json_object_options options)
 {
   auto tid          = cudf::detail::grid_1d::global_thread_id();
-  auto const stride = cudf::thread_index_type{blockDim.x} * cudf::thread_index_type{gridDim.x};
+  auto const stride = cudf::detail::grid_1d::grid_stride();
 
   size_type warp_valid_count{0};