diff --git a/src/wallet/api/pending_transaction.cpp b/src/wallet/api/pending_transaction.cpp
index e1a5e767..80fb0b9a 100644
--- a/src/wallet/api/pending_transaction.cpp
+++ b/src/wallet/api/pending_transaction.cpp
@@ -136,7 +136,7 @@ uint64_t PendingTransactionImpl::dust() const
 uint64_t PendingTransactionImpl::fee() const
 {
     uint64_t result = 0;
-    for (const auto ptx : m_pending_tx) {
+    for (const auto &ptx : m_pending_tx) {
         result += ptx.fee;
     }
     return result;