diff --git a/plugins/trezor.py b/plugins/trezor.py
index b7b62bdc..7033573c 100644
--- a/plugins/trezor.py
+++ b/plugins/trezor.py
@@ -433,6 +433,7 @@ class TrezorQtGuiMixin(object):
         d = QDialog(None)
         d.setModal(1)
         d.setWindowTitle(_("Enter PIN"))
+        d.setWindowFlags(d.windowFlags() | QtCore.Qt.WindowStaysOnTopHint)
         matrix = PinMatrixWidget()
 
         vbox = QVBoxLayout()