Fix typo.

--HG--
branch : hotfix/py26-compat

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 71fc3b304..9fc40d70b 100644
--- a/setup.py
+++ b/setup.py
@@ -121,7 +121,7 @@ class MyInstallLib(install_lib.install_lib):
                 dest = join(self.install_dir, base, directory)
                 if sys.version_info >= (3, 0):
                     exclude = set(['invalid_encoded_data*',
-                                   'unkown_encoding*'])
+                                   'unknown_encoding*'])
                 else:
                     exclude = set()
                 shutil.rmtree(dest, ignore_errors=True)