diff --git a/freqtrade/rpc/rpc.py b/freqtrade/rpc/rpc.py
index c3cbce2e7..7e7b60ebc 100644
--- a/freqtrade/rpc/rpc.py
+++ b/freqtrade/rpc/rpc.py
@@ -410,7 +410,7 @@ class RPC(object):
             raise RPCException(f'position for {pair} already open - id: {trade.id}')
 
         # gen stake amount
-        stakeamount = self._freqtrade._get_trade_stake_amount()
+        stakeamount = self._freqtrade._get_trade_stake_amount(pair)
 
         # execute buy
         if self._freqtrade.execute_buy(pair, stakeamount, price):