diff --git a/gui/kivy/main_window.py b/gui/kivy/main_window.py
index f994b8cb..f94b4bdd 100644
--- a/gui/kivy/main_window.py
+++ b/gui/kivy/main_window.py
@@ -259,7 +259,7 @@ class ElectrumWindow(App):
         self.daemon = self.gui_object.daemon
         self.fx = self.daemon.fx
 
-        self.use_rbf = config.get('use_rbf', False)
+        self.use_rbf = config.get('use_rbf', True)
         self.use_change = config.get('use_change', True)
         self.use_unconfirmed = not config.get('confirmed_only', False)