diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 33f482a12..3d1cfddd0 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -2776,9 +2776,8 @@ void wallet2::process_parsed_blocks(uint64_t start_height, const std::vector<cry
   {
     if (tx_cache_data[i].empty())
       continue;
-    tpool.submit(&waiter, [&hwdev, &gender, &tx_cache_data, i]() {
+    tpool.submit(&waiter, [&gender, &tx_cache_data, i]() {
       auto &slot = tx_cache_data[i];
-      boost::unique_lock<hw::device> hwdev_lock(hwdev);
       for (auto &iod: slot.primary)
         gender(iod);
       for (auto &iod: slot.additional)