--- a/tests/run-tests.py	Tue Feb 07 23:24:47 2017 -0800
+++ b/tests/run-tests.py	Fri Feb 10 04:09:06 2017 -0800
@@ -124,7 +124,8 @@
             s.close()
             return True
         except socket.error as exc:
-            if exc.errno not in (errno.EADDRINUSE, errno.EADDRNOTAVAIL):
+            if exc.errno not in (errno.EADDRINUSE, errno.EADDRNOTAVAIL,
+                                 errno.EPROTONOSUPPORT):
                 raise
     return False