1 files changed, 3 insertions, 2 deletions
diff --git a/src/device_trezor/device_trezor.cpp b/src/device_trezor/device_trezor.cpp
index 07c03fc66..f55cbb15d 100644
--- a/src/device_trezor/device_trezor.cpp
+++ b/src/device_trezor/device_trezor.cpp
@@ -212,9 +212,10 @@ namespace trezor {
                                 tools::wallet2::signed_tx_set & signed_tx,
                                 hw::tx_aux_data & aux_data)
     {
+      CHECK_AND_ASSERT_THROW_MES(unsigned_tx.transfers.first == 0, "Unsuported non zero offset");
       size_t num_tx = unsigned_tx.txes.size();
       signed_tx.key_images.clear();
-      signed_tx.key_images.resize(unsigned_tx.transfers.size());
+      signed_tx.key_images.resize(unsigned_tx.transfers.second.size());
 
       for(size_t tx_idx = 0; tx_idx < num_tx; ++tx_idx) {
         std::shared_ptr<protocol::tx::Signer> signer;
@@ -360,4 +361,4 @@ namespace trezor {
     }
 
 #endif //WITH_DEVICE_TREZOR
-}}
-\ No newline at end of file
+}}