diff --git a/spm6103_viewer.py b/spm6103_viewer.py
index 36eb2ef..1af3bb3 100644
--- a/spm6103_viewer.py
+++ b/spm6103_viewer.py
@@ -132,7 +132,7 @@ def fetch_device_info():
     app.after(100, fetch_device_info)
 
 app = tk.Tk()
-app.title("OWON SPM6103")
+app.title(get_id().replace(","," "))
 # Load and apply the saved geometry (size + position)
 app.geometry(load_window_geometry())
 app.configure(bg="black")