diff --git a/lib/commands.py b/lib/commands.py
index 8435cf9ec..f751e7d20 100644
--- a/lib/commands.py
+++ b/lib/commands.py
@@ -412,6 +412,8 @@ class Commands:
         tx = self.wallet.make_unsigned_transaction(coins, final_outputs, self.config, fee, change_addr)
         if locktime != None: 
             tx.locktime = locktime
+        if rbf is None:
+            rbf = self.config.get('use_rbf', True)
         if rbf:
             tx.set_rbf(True)
         if not unsigned:
@@ -420,7 +422,7 @@ class Commands:
         return tx
 
     @command('wp')
-    def payto(self, destination, amount, fee=None, from_addr=None, change_addr=None, nocheck=False, unsigned=False, rbf=False, password=None, locktime=None):
+    def payto(self, destination, amount, fee=None, from_addr=None, change_addr=None, nocheck=False, unsigned=False, rbf=None, password=None, locktime=None):
         """Create a transaction. """
         tx_fee = satoshis(fee)
         domain = from_addr.split(',') if from_addr else None
@@ -428,7 +430,7 @@ class Commands:
         return tx.as_dict()
 
     @command('wp')
-    def paytomany(self, outputs, fee=None, from_addr=None, change_addr=None, nocheck=False, unsigned=False, rbf=False, password=None, locktime=None):
+    def paytomany(self, outputs, fee=None, from_addr=None, change_addr=None, nocheck=False, unsigned=False, rbf=None, password=None, locktime=None):
         """Create a multi-output transaction. """
         tx_fee = satoshis(fee)
         domain = from_addr.split(',') if from_addr else None