diff --git a/lib/wallet.py b/lib/wallet.py
index 43235415..0dfca00d 100644
--- a/lib/wallet.py
+++ b/lib/wallet.py
@@ -911,6 +911,7 @@ class Abstract_Wallet(PrintError):
 
         outputs = [(TYPE_ADDRESS, recipient, total - fee)]
         tx = Transaction.from_io(inputs, outputs)
+        tx.set_rbf(True)
         tx.sign(keypairs)
         return tx