diff --git a/projects/rocprim/rocprim/include/rocprim/device/detail/device_batch_memcpy.hpp b/projects/rocprim/rocprim/include/rocprim/device/detail/device_batch_memcpy.hpp
index 84198f6cbc8..b47c893f089 100644
--- a/projects/rocprim/rocprim/include/rocprim/device/detail/device_batch_memcpy.hpp
+++ b/projects/rocprim/rocprim/include/rocprim/device/detail/device_batch_memcpy.hpp
@@ -341,6 +341,7 @@ struct batch_memcpy_impl
                                   typename std::iterator_traits<typename std::iterator_traits<
                                       InputBufferItType>::value_type>::value_type>::type;
 
+
     // Offset over buffers.
     using buffer_offset_type = uint32_t;
 
@@ -545,8 +546,9 @@ struct batch_memcpy_impl
                 if(blev_buffer_offset < num_blev_buffers)
                 {
                     auto tile_buffer_id = buffer_by_size_class[blev_buffer_offset].buffer_id;
+                    unsigned long long size = static_cast<unsigned long long>(buffers.sizes[tile_buffer_id]);
                     tile_offsets[i]
-                        = rocprim::detail::ceiling_div(buffers.sizes[tile_buffer_id],
+                        = rocprim::detail::ceiling_div(size,
                                                        blev_block_size * blev_bytes_per_thread);
                 }
                 else
@@ -620,10 +622,11 @@ struct batch_memcpy_impl
                 buffer_offset += warps_per_block)
             {
                 const auto buffer_id = buffers_by_size_class[buffer_offset].buffer_id;
-
+                
+                unsigned long long size = static_cast<unsigned long long>(tile_buffers.sizes[buffer_id]);
                 batch_memcpy::copy_items<IsMemCpy>(tile_buffers.srcs[buffer_id],
-                                                   tile_buffers.dsts[buffer_id],
-                                                   tile_buffers.sizes[buffer_id]);
+                            tile_buffers.dsts[buffer_id],
+                            size);
             }
         }