diff --git a/backends/vulkan/runtime/graph/ops/impl/Copy.cpp b/backends/vulkan/runtime/graph/ops/impl/Copy.cpp
index 15cfce2a014..b98b2c504d4 100644
--- a/backends/vulkan/runtime/graph/ops/impl/Copy.cpp
+++ b/backends/vulkan/runtime/graph/ops/impl/Copy.cpp
@@ -135,7 +135,7 @@ void add_copy_channel_offset_node(
         utils::safe_downcast<uint32_t>(dim_at<kWidth4D>(in_sizes)),
         utils::safe_downcast<uint32_t>(dim_at<kHeight4D>(in_sizes)),
         utils::safe_downcast<uint32_t>(dst_last_z - dst_first_z + 1)};
-    uvec3 local_size = adaptive_work_group_size(global_size);
+    uvec3 local_size = graph.create_local_wg_size(global_size);
 
     const struct Block final {
       ivec3 range;
diff --git a/backends/vulkan/runtime/graph/ops/impl/Slice.cpp b/backends/vulkan/runtime/graph/ops/impl/Slice.cpp
index 413cf40ea31..40603394660 100644
--- a/backends/vulkan/runtime/graph/ops/impl/Slice.cpp
+++ b/backends/vulkan/runtime/graph/ops/impl/Slice.cpp
@@ -126,7 +126,7 @@ void add_slice_tensor_copy_node(
     add_dtype_suffix(kernel_name, *t_out);
 
     utils::uvec3 global_size = t_out->logical_limits();
-    utils::uvec3 local_size = adaptive_work_group_size(global_size);
+    utils::uvec3 local_size = graph.create_local_wg_size(global_size);
 
     const struct Block final {
       int dim;