diff --git a/gui/qt/transaction_dialog.py b/gui/qt/transaction_dialog.py
index 665db543d..ada3b8e75 100644
--- a/gui/qt/transaction_dialog.py
+++ b/gui/qt/transaction_dialog.py
@@ -72,7 +72,7 @@ class TxDialog(QDialog):
 
         vbox.addStretch(1)
 
-        buttons = QHBoxLayout()
+        self.buttons = buttons = QHBoxLayout()
         vbox.addLayout( buttons )
 
         buttons.addStretch(1)
@@ -101,6 +101,8 @@ class TxDialog(QDialog):
         buttons.insertWidget(1,b)
         self.update()
 
+        run_hook('transaction_dialog', self)
+
 
     def show_qr(self):
         try: