diff --git a/Lib/distutils/unixccompiler.py b/Lib/distutils/unixccompiler.py
index 356587d..7e63c56 100644
--- a/Lib/distutils/unixccompiler.py
+++ b/Lib/distutils/unixccompiler.py
@@ -17,7 +17,7 @@
 
 __revision__ = "$Id$"
 
-import string, re, os
+import string, re, os, sys
 from types import *
 from copy import copy
 from distutils import sysconfig
@@ -62,6 +62,9 @@
                    'ranlib'       : None,
                   }
 
+    if sys.platform[:6] == "darwin":
+        executables['ranlib'] = ["ranlib"]
+
     # Needed for the filename generation methods provided by the base
     # class, CCompiler.  NB. whoever instantiates/uses a particular
     # UnixCCompiler instance should set 'shared_lib_ext' -- we set a