diff --git a/hwilib/_gui.py b/hwilib/_gui.py
index cd0a73f9e..fcbd1ae5b 100644
--- a/hwilib/_gui.py
+++ b/hwilib/_gui.py
@@ -325,7 +325,7 @@ def __init__(self, passphrase=None, chain=Chain.MAIN):
         super(HWIQt, self).__init__()
         self.ui = Ui_MainWindow()
         self.ui.setupUi(self)
-        self.setWindowTitle('HWI Qt')
+        self.setWindowTitle(f'HWI Qt - {chain}')
 
         self.devices = []
         self.client = None