diff --git a/inst/include/dust2/packing.hpp b/inst/include/dust2/packing.hpp
index b8cc3c35..ef12f99c 100644
--- a/inst/include/dust2/packing.hpp
+++ b/inst/include/dust2/packing.hpp
@@ -23,7 +23,6 @@ class packing {
       offset_.push_back(size_);
       size_ += len_i;
     }
-    size_ = std::accumulate(len_.begin(), len_.end(), 0);
   }
 
   packing() : size_(0) {
@@ -41,10 +40,6 @@ class packing {
     return data_;
   }
 
-  auto& offset() const {
-    return offset_;
-  }
-
   template <typename Iter>
   void copy_offset(Iter it) {
     std::copy(offset_.begin(), offset_.end(), it);