diff --git a/freqtrade/rpc/rpc.py b/freqtrade/rpc/rpc.py
index 0d4fbd677..8540a0733 100644
--- a/freqtrade/rpc/rpc.py
+++ b/freqtrade/rpc/rpc.py
@@ -562,7 +562,7 @@ class RPC:
 
     def _rpc_balance(self, stake_currency: str, fiat_display_currency: str) -> Dict:
         """ Returns current account balance per crypto """
-        currencies = []
+        currencies: List[Dict] = []
         total = 0.0
         try:
             tickers = self._freqtrade.exchange.get_tickers(cached=True)