diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index dbc3447be..ef5b96096 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -2377,7 +2377,8 @@ class Exchange:
             return
 
         try:
-            self._api.set_leverage(symbol=pair, leverage=leverage)
+            res = self._api.set_leverage(symbol=pair, leverage=leverage)
+            self._log_exchange_response('set_leverage', res)
         except ccxt.DDoSProtection as e:
             raise DDosProtection(e) from e
         except (ccxt.NetworkError, ccxt.ExchangeError) as e:
@@ -2441,7 +2442,8 @@ class Exchange:
             return
 
         try:
-            self._api.set_margin_mode(margin_mode.value, pair, params)
+            res = self._api.set_margin_mode(margin_mode.value, pair, params)
+            self._log_exchange_response('set_margin_mode', res)
         except ccxt.DDoSProtection as e:
             raise DDosProtection(e) from e
         except (ccxt.NetworkError, ccxt.ExchangeError) as e:
diff --git a/freqtrade/wallets.py b/freqtrade/wallets.py
index 14e5a6743..41115c72e 100644
--- a/freqtrade/wallets.py
+++ b/freqtrade/wallets.py
@@ -148,7 +148,7 @@ class Wallets:
                 # Position is not open ...
                 continue
             size = self._exchange._contracts_to_amount(symbol, position['contracts'])
-            collateral = position['collateral']
+            collateral = position['collateral'] or 0.0
             leverage = position['leverage']
             self._positions[symbol] = PositionWallet(
                 symbol, position=size,