diff --git a/src/currency_core/block_chain_shortener.cpp b/src/currency_core/block_chain_shortener.cpp
index 9cb53295..986658a1 100644
--- a/src/currency_core/block_chain_shortener.cpp
+++ b/src/currency_core/block_chain_shortener.cpp
@@ -13,7 +13,7 @@
 #define SHORTENER_EVERY_100_BLOCKS_SIZE                                  144
 #define SHORTENER_EVERY_1000_BLOCKS_SIZE                                 144
 
-static void exception_handler(){}
+//static void exception_handler(){}
 
 
 
diff --git a/tests/core_tests/double_spend.inl b/tests/core_tests/double_spend.inl
index 19ec33e9..524d3edc 100644
--- a/tests/core_tests/double_spend.inl
+++ b/tests/core_tests/double_spend.inl
@@ -96,7 +96,7 @@ bool gen_double_spend_in_tx<txs_kept_by_block>::generate(std::vector<test_event_
   currency::transaction tx_1 = AUTO_VAL_INIT(tx_1);
   std::vector<currency::attachment_v> attachments;
   size_t tx_hardfork_id{};
-  uint64_t tx_version = get_tx_version_from_events(events);
+  uint64_t tx_version = this->get_tx_version_from_events(events);
   if (!construct_tx(bob_account.get_keys(), sources, destinations, attachments, tx_1, tx_version, tx_hardfork_id, uint64_t(0)))
     return false;