diff --git a/freqtrade/tests/test_wallets.py b/freqtrade/tests/test_wallets.py
index e226d117f..a5295579b 100644
--- a/freqtrade/tests/test_wallets.py
+++ b/freqtrade/tests/test_wallets.py
@@ -26,7 +26,32 @@ def test_sync_wallet_at_boot(mocker, default_conf):
     assert freqtrade.wallets.wallets['BNT'].free == 1.0
     assert freqtrade.wallets.wallets['BNT'].used == 2.0
     assert freqtrade.wallets.wallets['BNT'].total == 3.0
-
     assert freqtrade.wallets.wallets['GAS'].free == 0.260739
     assert freqtrade.wallets.wallets['GAS'].used == 0.0
     assert freqtrade.wallets.wallets['GAS'].total == 0.260739
+
+    mocker.patch.multiple(
+        'freqtrade.exchange.Exchange',
+        get_balances=MagicMock(return_value={
+            "BNT": {
+                "free": 1.2,
+                "used": 1.9,
+                "total": 3.5
+            },
+            "GAS": {
+                "free": 0.270739,
+                "used": 0.1,
+                "total": 0.260439
+            },
+        })
+    )
+
+    freqtrade.wallets.update()
+
+    assert len(freqtrade.wallets.wallets) == 2
+    assert freqtrade.wallets.wallets['BNT'].free == 1.2
+    assert freqtrade.wallets.wallets['BNT'].used == 1.9
+    assert freqtrade.wallets.wallets['BNT'].total == 3.5
+    assert freqtrade.wallets.wallets['GAS'].free == 0.270739
+    assert freqtrade.wallets.wallets['GAS'].used == 0.1
+    assert freqtrade.wallets.wallets['GAS'].total == 0.260439