diff --git a/src/currency_core/blockchain_storage.cpp b/src/currency_core/blockchain_storage.cpp
index 959e2765..4da0c24a 100644
--- a/src/currency_core/blockchain_storage.cpp
+++ b/src/currency_core/blockchain_storage.cpp
@@ -4861,7 +4861,7 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
       CHECK_AND_ASSERT_MES_NO_RET(add_res, "handle_block_to_main_chain: failed to add transaction back to transaction pool");
       purge_block_data_from_blockchain(bl, tx_processed_count);
       add_block_as_invalid(bl, id);
-      LOG_PRINT_L0("Block with id " << id << " added as invalid becouse of wrong inputs in transactions");
+      LOG_PRINT_L0("Block with id " << id << " added as invalid because of wrong inputs in transactions");
       bvc.m_verification_failed = true;
       return false;
     }
@@ -5361,7 +5361,7 @@ bool blockchain_storage::build_stake_modifier(stake_modifier_type& sm, const alt
   else
   {
     bool r = string_tools::parse_tpod_from_hex_string(POS_STARTER_KERNEL_HASH, sm.last_pos_kernel_id);
-    CHECK_AND_ASSERT_MES(r, false, "Failed to parse POS_STARTER_MODFIFIER");
+    CHECK_AND_ASSERT_MES(r, false, "Failed to parse POS_STARTER_KERNEL_HASH");
   }
 
   sm.last_pow_id = get_block_hash(pbei_last_pow->bl);
diff --git a/tests/core_tests/chaingen.cpp b/tests/core_tests/chaingen.cpp
index 430f2d6f..b03d2b9b 100644
--- a/tests/core_tests/chaingen.cpp
+++ b/tests/core_tests/chaingen.cpp
@@ -176,7 +176,7 @@ bool test_generator::add_block_info(const currency::block& b, const std::list<cu
       sk.stake_modifier.last_pos_kernel_id = chain[pos_idx]->ks_hash;
     else
     {
-      CHECK_AND_ASSERT_MES(string_tools::parse_tpod_from_hex_string(POS_STARTER_KERNEL_HASH, sk.stake_modifier.last_pos_kernel_id), false, "Failed to parse POS_STARTER_MODFIFIER");
+      CHECK_AND_ASSERT_MES(string_tools::parse_tpod_from_hex_string(POS_STARTER_KERNEL_HASH, sk.stake_modifier.last_pos_kernel_id), false, "Failed to parse POS_STARTER_KERNEL_HASH");
     }
     uint64_t pow_idx = get_last_block_of_type(false, chain);
     sk.stake_modifier.last_pow_id = get_block_hash(chain[pow_idx]->b);
@@ -686,7 +686,7 @@ bool test_generator::build_stake_modifier(stake_modifier_type& sm, const test_ge
   else
   {
     bool r = string_tools::parse_tpod_from_hex_string(POS_STARTER_KERNEL_HASH, sm.last_pos_kernel_id);
-    CHECK_AND_ASSERT_MES(r, false, "Failed to parse POS_STARTER_MODFIFIER");
+    CHECK_AND_ASSERT_MES(r, false, "Failed to parse POS_STARTER_KERNEL_HASH");
   }
 
   sm.last_pow_id = get_block_hash(blck_chain[last_pow_i]->b);
diff --git a/tests/core_tests/chaingen_main.cpp b/tests/core_tests/chaingen_main.cpp
index 42445b45..42f8f112 100644
--- a/tests/core_tests/chaingen_main.cpp
+++ b/tests/core_tests/chaingen_main.cpp
@@ -1024,3 +1024,11 @@ void tx2log(const currency::transaction& tx)
   currency::transaction ltx = tx;
   LOG_PRINT("!dbg transaction: " << currency::get_transaction_hash(ltx) << ENDL << currency::obj_to_json_str(ltx), LOG_LEVEL_0);
 }
+
+const char* amount2log(const uint64_t amount)
+{
+  static std::string s;
+  s = currency::print_money_brief(amount);
+  LOG_PRINT("!dbg amount: " << s, LOG_LEVEL_0);
+  return s.c_str();
+}
diff --git a/tests/core_tests/pos_block_builder.cpp b/tests/core_tests/pos_block_builder.cpp
index 80c5f0b1..4127e948 100644
--- a/tests/core_tests/pos_block_builder.cpp
+++ b/tests/core_tests/pos_block_builder.cpp
@@ -78,7 +78,7 @@ void pos_block_builder::step3_build_stake_kernel(
   if (last_pos_block_kernel_hash == null_hash)
   {
     bool r = string_tools::parse_tpod_from_hex_string(POS_STARTER_KERNEL_HASH, m_stake_kernel.stake_modifier.last_pos_kernel_id);
-    CHECK_AND_ASSERT_THROW_MES(r, "Failed to parse POS_STARTER_MODFIFIER");
+    CHECK_AND_ASSERT_THROW_MES(r, "Failed to parse POS_STARTER_KERNEL_HASH");
   }
 
   wide_difficulty_type stake_difficulty = difficulty / stake_output_amount;