diff --git a/EDMarketConnector.py b/EDMarketConnector.py
index 67f7f706..528584ca 100755
--- a/EDMarketConnector.py
+++ b/EDMarketConnector.py
@@ -9,7 +9,6 @@ import locale
 import pathlib
 import re
 import sys
-import threading
 import webbrowser
 from builtins import object, str
 from os import chdir, environ
@@ -18,8 +17,6 @@ from sys import platform
 from time import localtime, strftime, time
 from typing import TYPE_CHECKING, Optional, Tuple
 
-from infi.systray import SysTrayIcon
-
 # Have this as early as possible for people running EDMarketConnector.exe
 # from cmd.exe or a bat file or similar.  Else they might not be in the correct
 # place for things like config.py reading .gitversion
@@ -333,17 +330,21 @@ class AppWindow(object):
 
         self.prefsdialog = None
 
-        self.only_tray_close = 0
+        if platform == 'win32':
+            import threading
+            from infi.systray import SysTrayIcon
 
-        def open_window(systray) -> None:
-            self.only_tray_close = 2
-            shutdown_thread = threading.Thread(target=systray.shutdown)
-            shutdown_thread.setDaemon(True)
-            shutdown_thread.start()
-            self.w.deiconify()
+            self.only_tray_close = 0
 
-        menu_options = (("Open", None, open_window),)
-        self.systray = SysTrayIcon("EDMarketConnector.ico", applongname, menu_options, on_quit=self.exit_tray)
+            def open_window(systray) -> None:
+                self.only_tray_close = 2
+                shutdown_thread = threading.Thread(target=systray.shutdown)
+                shutdown_thread.setDaemon(True)
+                shutdown_thread.start()
+                self.w.deiconify()
+
+            menu_options = (("Open", None, open_window),)
+            self.systray = SysTrayIcon("EDMarketConnector.ico", applongname, menu_options, on_quit=self.exit_tray)
 
         plug.load_plugins(master)
 
@@ -1388,17 +1389,22 @@ class AppWindow(object):
 
     def onexit(self, event=None) -> None:
         """Application shutdown procedure."""
-        value = bool(config.get_int('close_system_tray'))
+        if platform == 'win32':
+            value = bool(config.get_int('close_system_tray'))
 
-        if value:
-            self.w.withdraw()
-            self.systray.start()
+            if value:
+                self.w.withdraw()
+                self.systray.start()
+
+            else:
+                self.exit()
 
         else:
             self.exit()
 
     def exit_tray(self, systray) -> None:
         """Tray icon is shutting down."""
+        import threading
         if self.only_tray_close > 0:
             self.only_tray_close -= 1
 
diff --git a/prefs.py b/prefs.py
index 19289478..929ddc0c 100644
--- a/prefs.py
+++ b/prefs.py
@@ -792,13 +792,13 @@ class PreferencesDialog(tk.Toplevel):
         )
         self.ontop_button.grid(columnspan=3, padx=self.BUTTONX, sticky=tk.W, row=row.get())  # Appearance setting
 
-        self.system_tray_button = nb.Checkbutton(
-            appearance_frame,
-            text=_('Close to system tray'),
-            variable=self.close_system_tray,
-            command=self.themevarchanged
-        )
-        self.system_tray_button.grid(columnspan=3, padx=self.BUTTONX, sticky=tk.W, row=row.get())  # Appearance setting
+        if platform == 'win32':
+            nb.Checkbutton(
+                appearance_frame,
+                text=_('Close to system tray'),
+                variable=self.close_system_tray,
+                command=self.themevarchanged
+            ).grid(columnspan=3, padx=self.BUTTONX, sticky=tk.W, row=row.get())  # Appearance setting
 
         nb.Label(appearance_frame).grid(sticky=tk.W)  # big spacer
 
diff --git a/requirements.txt b/requirements.txt
index b157c90b..cc3d8c4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 certifi==2020.12.5
 requests==2.25.1
 watchdog==2.0.3
-infi.systray==0.1.12
+infi.systray==0.1.12; sys_platform == 'win32'
 # argh==0.26.2 watchdog dep
 # pyyaml==5.3.1 watchdog dep
 semantic-version==2.8.5