diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index d747845..e63f9f2 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -4,7 +4,6 @@
 import subprocess
 import sys
 import platform
-import ctypes
 import signal
 import io
 import os
@@ -19,6 +18,11 @@
 import textwrap
 
 try:
+    import ctypes
+except ImportError:
+    ctypes = None
+
+try:
     import threading
 except ImportError:
     threading = None
@@ -2504,6 +2508,7 @@
       'Linux': 'so.6',
       'Darwin': 'dylib',
     }
+    @unittest.skipIf(not ctypes, 'ctypes module required.')
     @unittest.skipIf(platform.uname()[0] not in _libc_file_extensions,
                      'Test requires a libc this code can load with ctypes.')
     @unittest.skipIf(not sys.executable, 'Test requires sys.executable.')