diff --git a/Lib/ctypes/test/test_slicing.py b/Lib/ctypes/test/test_slicing.py
index 008e92fc265..08c811e06ad 100644
--- a/Lib/ctypes/test/test_slicing.py
+++ b/Lib/ctypes/test/test_slicing.py
@@ -46,12 +46,12 @@ class SlicesTestCase(unittest.TestCase):
         import operator
         self.assertRaises(TypeError, operator.setslice,
                           res, 0, 5, u"abcde")
-        dll.free(res)
+        dll.my_free(res)
 
         dll.my_strdup.restype = POINTER(c_byte)
         res = dll.my_strdup(s)
         self.failUnlessEqual(res[:len(s)-1], range(ord("a"), ord("z")+1))
-        dll.free(res)
+        dll.my_free(res)
 
     def test_char_array(self):
         s = "abcdefghijklmnopqrstuvwxyz\0"
@@ -78,7 +78,7 @@ class SlicesTestCase(unittest.TestCase):
             import operator
             self.assertRaises(TypeError, operator.setslice,
                               res, 0, 5, u"abcde")
-            dll.free(res)
+            dll.my_free(res)
 
             if sizeof(c_wchar) == sizeof(c_short):
                 dll.my_wcsdup.restype = POINTER(c_short)
@@ -90,7 +90,7 @@ class SlicesTestCase(unittest.TestCase):
                 return
             res = dll.my_wcsdup(s)
             self.failUnlessEqual(res[:len(s)-1], range(ord("a"), ord("z")+1))
-            dll.free(res)
+            dll.my_free(res)
 
 ################################################################