diff --git a/src/currency_core/currency_basic_backward_comp.inl b/src/currency_core/currency_basic_backward_comp.inl
index 4a8ff1fe..b9d3b575 100644
--- a/src/currency_core/currency_basic_backward_comp.inl
+++ b/src/currency_core/currency_basic_backward_comp.inl
@@ -46,7 +46,6 @@ public:
 template<typename transaction_prefix_current_t>
 bool transition_convert(const transaction_prefix_current_t& from, transaction_prefix_v1& to)
 {
-  to.version = from.version;
   to.extra = from.extra;
   to.vin = from.vin;
   to.vout = from.vout;
@@ -55,7 +54,6 @@ bool transition_convert(const transaction_prefix_current_t& from, transaction_pr
 template<typename transaction_prefix_current_t>
 bool transition_convert(const transaction_prefix_v1& from, transaction_prefix_current_t& to)
 {
-  to.version = from.version;
   to.extra = from.extra;
   to.vin = from.vin;
   to.vout = from.vout;