diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py
index 352dbdea817e63..962b0e4f041480 100644
--- a/Lib/test/test_sysconfig.py
+++ b/Lib/test/test_sysconfig.py
@@ -1,3 +1,4 @@
+import platform
 import unittest
 import sys
 import os
@@ -365,6 +366,14 @@ def test_EXT_SUFFIX_in_vars(self):
         vars = sysconfig.get_config_vars()
         self.assertIsNotNone(vars['SO'])
         self.assertEqual(vars['SO'], vars['EXT_SUFFIX'])
+
+    @unittest.skipIf(sysconfig.get_config_var('EXT_SUFFIX') is None,
+                     'EXT_SUFFIX required for this test')
+    @unittest.skipIf(sys.platform.startswith('freebsd'), "fails on FREEBSD")
+    @unittest.skipIf(platform.system() =='AIX', "fails on AIX")
+    def test_EXT_SUFFIX_in_vars(self):
+        import _imp
+        vars = sysconfig.get_config_vars()
         self.assertEqual(vars['EXT_SUFFIX'], _imp.extension_suffixes()[0])
 
     @unittest.skipUnless(sys.platform == 'linux' and