diff --git a/planetmint/backend/tarantool/query.py b/planetmint/backend/tarantool/query.py
index 649dd39..d4ad9c3 100644
--- a/planetmint/backend/tarantool/query.py
+++ b/planetmint/backend/tarantool/query.py
@@ -238,7 +238,7 @@ def get_block(connection, block_id=None):
 @register_query(TarantoolDBConnection)
 def get_block_with_transaction(connection, txid: str):
     _block = connection.run(connection.space("blocks").select(txid, index="block_by_transaction_id"))
-    return _block[0] if len(_block) == 1 else []
+    return _block if len(_block) > 0 else []
 
 
 @register_query(TarantoolDBConnection)
diff --git a/tests/web/test_block_tendermint.py b/tests/web/test_block_tendermint.py
index 625ff26..68230e9 100644
--- a/tests/web/test_block_tendermint.py
+++ b/tests/web/test_block_tendermint.py
@@ -59,8 +59,8 @@ def test_get_block_containing_transaction(b, client, alice):
     block = Block(app_hash="random_utxo", height=13, transactions=[tx.id])
     b.store_block(block._asdict())
     res = client.get("{}?transaction_id={}".format(BLOCKS_ENDPOINT, tx.id))
-    expected_response = [block.height]
-    assert res.json == expected_response
+    expected_height = block.height
+    assert res.json[0][2] == expected_height
     assert res.status_code == 200