diff --git a/pkg_resources/extern/__init__.py b/pkg_resources/extern/__init__.py
index bf98d8f296..4dc3beb2fa 100644
--- a/pkg_resources/extern/__init__.py
+++ b/pkg_resources/extern/__init__.py
@@ -62,5 +62,5 @@ def install(self):
             sys.meta_path.append(self)
 
 
-names = 'packaging', 'pyparsing', 'six', 'appdirs'
+names = 'packaging', 'pyparsing', 'appdirs'
 VendorImporter(__name__, names).install()
diff --git a/setuptools/extern/__init__.py b/setuptools/extern/__init__.py
index 4e79aa17ec..b7f30dc2e3 100644
--- a/setuptools/extern/__init__.py
+++ b/setuptools/extern/__init__.py
@@ -62,5 +62,5 @@ def install(self):
             sys.meta_path.append(self)
 
 
-names = 'six', 'packaging', 'pyparsing', 'ordered_set',
+names = 'packaging', 'pyparsing', 'ordered_set',
 VendorImporter(__name__, names, 'setuptools._vendor').install()