diff --git a/User_Interface.py b/User_Interface.py
index 2b98a88..4f3b1f4 100644
--- a/User_Interface.py
+++ b/User_Interface.py
@@ -37,7 +37,10 @@ class HelmholtzGUI(Tk):
         Tk.__init__(self)
 
         Tk.wm_title(self, "Helmholtz Cage Control")  # set title of the window
-        Tk.wm_iconbitmap(self, "Helmholtz.ico")  # set application icon
+        try:
+            Tk.wm_iconbitmap(self, "Helmholtz.ico")  # set application icon
+        except TclError:
+            pass
 
         self.Menu = TopMenu(self)  # display dropdown menu bar at the top (see TopMenu class for details)