diff --git a/tests/test_misc.py b/tests/test_misc.py
index 75f4c8622..de3f368e9 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -69,7 +69,7 @@ def test_file_load_json(mocker, testdatadir) -> None:
     ("ETH/BTC", 'ETH_BTC'),
     ("ETH/USDT", 'ETH_USDT'),
     ("ETH/USDT:USDT", 'ETH_USDT_USDT'),  # swap with USDT as settlement currency
-    ("ETH/USDT:USDT-210625", 'ETH_USDT_USDT-210625'),  # expiring futures
+    ("ETH/USDT:USDT-210625", 'ETH_USDT_USDT_210625'),  # expiring futures
     ("Fabric Token/ETH", 'Fabric_Token_ETH'),
     ("ETHH20", 'ETHH20'),
     (".XBTBON2H", '_XBTBON2H'),