diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index 3a39f9300..67692cd27 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -93,6 +93,7 @@ class Exchange:
         self._api: ccxt.Exchange = None
         self._api_async: ccxt_async.Exchange = None
         self._markets: Dict = {}
+        self._trading_fees: Dict[str, Any] = {}
         self._leverage_tiers: Dict[str, List[Dict]] = {}
         self.loop = asyncio.new_event_loop()
         asyncio.set_event_loop(self.loop)
@@ -453,7 +454,7 @@ class Exchange:
             self._load_async_markets()
             self._last_markets_refresh = arrow.utcnow().int_timestamp
             if self._ft_has['needs_trading_fees']:
-                self.trading_fees = self.fetch_trading_fees()
+                self._trading_fees = self.fetch_trading_fees()
 
         except ccxt.BaseError:
             logger.exception('Unable to initialize markets.')
diff --git a/freqtrade/exchange/gateio.py b/freqtrade/exchange/gateio.py
index 726b5c7ed..23174bcd6 100644
--- a/freqtrade/exchange/gateio.py
+++ b/freqtrade/exchange/gateio.py
@@ -57,7 +57,7 @@ class Gateio(Exchange):
             # An alternative also contianing fees would be
             # privateFuturesGetSettleAccountBook({"settle": "usdt"})
 
-            pair_fees = self.trading_fees.get(pair, {})
+            pair_fees = self._trading_fees.get(pair, {})
             if pair_fees and pair_fees['taker'] is not None:
                 order['fee'] = {
                     'currency': self.get_pair_quote_currency(pair),
diff --git a/tests/exchange/test_exchange.py b/tests/exchange/test_exchange.py
index 4f5aac199..5d16c3501 100644
--- a/tests/exchange/test_exchange.py
+++ b/tests/exchange/test_exchange.py
@@ -1664,8 +1664,8 @@ def test_fetch_trading_fees(default_conf, mocker):
     mocker.patch('freqtrade.exchange.Exchange.exchange_has', return_value=True)
     exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
 
-    assert '1INCH/USDT:USDT' in exchange.trading_fees
-    assert 'ETH/USDT:USDT' in exchange.trading_fees
+    assert '1INCH/USDT:USDT' in exchange._trading_fees
+    assert 'ETH/USDT:USDT' in exchange._trading_fees
     assert api_mock.fetch_trading_fees.call_count == 1
 
     api_mock.fetch_trading_fees.reset_mock()
diff --git a/tests/exchange/test_gateio.py b/tests/exchange/test_gateio.py
index 73a3b1623..9102d6704 100644
--- a/tests/exchange/test_gateio.py
+++ b/tests/exchange/test_gateio.py
@@ -101,7 +101,7 @@ def test_fetch_order_gateio(mocker, default_conf):
         'amount': 1,  # 1 contract
     })
     exchange = get_patched_exchange(mocker, default_conf, api_mock=api_mock, id='gateio')
-    exchange.trading_fees = tick
+    exchange._trading_fees = tick
     order = exchange.fetch_order('22255', 'ETH/USDT:USDT')
 
     assert order['fee']