--- a/testing/functional/test_restart.py
+++ b/testing/functional/test_restart.py
@@ -323,14 +323,7 @@ class RestartTestWithoutEncryption(RestartTest):
         https://launchpad.net/bugs/929067
         """

-        if platform.system().startswith(u'Linux'):
-            tarcmd = u"tar"
-        elif platform.system().startswith(u'Darwin'):
-            tarcmd = u"gtar"
-        elif platform.system().endswith(u'BSD'):
-            tarcmd = u"gtar"
-        else:
-            raise Exception(u"Platform %s not supported by tar/gtar." % platform.platform())
+        tarcmd = u"tar"

         # Intial normal backup
         self.backup("full", "testfiles/blocktartest")