diff --git a/gui/qt/main_window.py b/gui/qt/main_window.py
index a9ad46c77..4fc32c102 100644
--- a/gui/qt/main_window.py
+++ b/gui/qt/main_window.py
@@ -1915,6 +1915,7 @@ class ElectrumWindow(QMainWindow):
         d = QDialog(self)
         d.setMinimumSize(600, 200)
         d.setModal(1)
+        d.setWindowTitle(_("Public key"))
         vbox = QVBoxLayout()
         vbox.addWidget( QLabel(_("Address") + ': ' + address))
         vbox.addWidget( QLabel(_("Public key") + ':'))
@@ -1937,6 +1938,7 @@ class ElectrumWindow(QMainWindow):
         d = QDialog(self)
         d.setMinimumSize(600, 200)
         d.setModal(1)
+        d.setWindowTitle(_("Private key"))
         vbox = QVBoxLayout()
         vbox.addWidget( QLabel(_("Address") + ': ' + address))
         vbox.addWidget( QLabel(_("Private key") + ':'))