Index: tasklib-2.4.3/tasklib/tests.py
===================================================================
--- tasklib-2.4.3.orig/tasklib/tests.py
+++ tasklib-2.4.3/tasklib/tests.py
@@ -66,6 +66,7 @@ class TasklibTest(unittest.TestCase):
 
 class TaskWarriorTest(TasklibTest):
 
+    @unittest.skipUnless(sys.platform.startswith("win"), "requires Windows")
     def test_custom_command(self):
         # ensure that a custom command which contains multiple parts
         # is properly split up