Index: lib2to3/refactor.py
===================================================================
--- lib2to3/refactor.py	(revision 63503)
+++ lib2to3/refactor.py	(working copy)
@@ -44,6 +44,8 @@
                       help="Fix up doctests only")
     parser.add_option("-f", "--fix", action="append", default=[],
                       help="Each FIX specifies a transformation; default all")
+    parser.add_option("-s", "--skip-fixes", action="append", default=[],
+                      help="Set fixes to be skipped")
     parser.add_option("-l", "--list-fixes", action="store_true",
                       help="List available transformations (fixes/fix_*.py)")
     parser.add_option("-p", "--print-function", action="store_true",
@@ -172,6 +174,8 @@
         fix_names = self.options.fix
         if not fix_names or "all" in fix_names:
             fix_names = get_all_fix_names()
+        fix_names = set(fix_names) - set(self.options.fix)
+
         for fix_name in fix_names:
             try:
                 mod = __import__("lib2to3.fixes.fix_" + fix_name, {}, {}, ["*"])