diff --git a/freqtrade/exchange/gateio.py b/freqtrade/exchange/gateio.py
index efad60c39..d51d5597f 100644
--- a/freqtrade/exchange/gateio.py
+++ b/freqtrade/exchange/gateio.py
@@ -56,7 +56,7 @@ class Gateio(Exchange):
             params={'stop': True}
         )
 
-    def stoploss_adjust(self, stop_loss: float, order: Dict) -> bool:
+    def stoploss_adjust(self, stop_loss: float, order: Dict, side: str) -> bool:
         """
         Verify stop_loss against stoploss-order value (limit or price)
         Returns True if adjustment is necessary.