diff --git a/src/cryptonote_basic/cryptonote_format_utils.cpp b/src/cryptonote_basic/cryptonote_format_utils.cpp
index 566622c1a..7d7de416d 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.cpp
+++ b/src/cryptonote_basic/cryptonote_format_utils.cpp
@@ -221,8 +221,7 @@ namespace cryptonote
     tx.invalidate_hashes();
     //TODO: validate tx
 
-    get_transaction_hash(tx, tx_hash);
-    return true;
+    return get_transaction_hash(tx, tx_hash);
   }
   //---------------------------------------------------------------
   bool parse_and_validate_tx_from_blob(const blobdata& tx_blob, transaction& tx, crypto::hash& tx_hash, crypto::hash& tx_prefix_hash)
@@ -975,6 +974,7 @@ namespace cryptonote
   {
     crypto::hash h = null_hash;
     get_transaction_hash(t, h, NULL);
+    CHECK_AND_ASSERT_THROW_MES(get_transaction_hash(t, h, NULL), "Failed to calculate transaction hash");
     return h;
   }
   //---------------------------------------------------------------
@@ -1327,7 +1327,7 @@ namespace cryptonote
     txs_ids.reserve(1 + b.tx_hashes.size());
     crypto::hash h = null_hash;
     size_t bl_sz = 0;
-    get_transaction_hash(b.miner_tx, h, bl_sz);
+    CHECK_AND_ASSERT_THROW_MES(get_transaction_hash(b.miner_tx, h, bl_sz), "Failed to calculate transaction hash");
     txs_ids.push_back(h);
     for(auto& th: b.tx_hashes)
       txs_ids.push_back(th);