diff --git a/mtkclient/Library/mtk_class.py b/mtkclient/Library/mtk_class.py
index 240b40d7..37dc63f3 100755
--- a/mtkclient/Library/mtk_class.py
+++ b/mtkclient/Library/mtk_class.py
@@ -205,7 +205,7 @@ def bypass_security(self):
             if mtk.serialportname:
                 mtk.port.serial_handshake()
             else:
-                mtk.port.handshake()
+                mtk.port.run_handshake()
             return mtk
         else:
             self.error("Error on running kamakiri payload")