1 files changed, 3 insertions, 4 deletions
diff --git a/cherrypy/lib/static.py b/cherrypy/lib/static.py
index ed6467a0..ffedb611 100644
--- a/cherrypy/lib/static.py
+++ b/cherrypy/lib/static.py
@@ -5,17 +5,19 @@ import platform
 import re
 import stat
 import mimetypes
-
 from email.generator import _make_boundary as make_boundary
 from io import UnsupportedOperation
 
 from six.moves import urllib
 
+from jaraco.functools import call_aside
+
 import cherrypy
 from cherrypy._cpcompat import ntob
 from cherrypy.lib import cptools, httputil, file_generator_limited
 
 
+@call_aside
 def _setup_mimetypes():
     """Pre-initialize global mimetype map."""
     if not mimetypes.inited:
@@ -26,9 +28,6 @@ def _setup_mimetypes():
     mimetypes.types_map['.gz'] = 'application/x-gzip'
 
 
-_setup_mimetypes()
-
-
 def serve_file(path, content_type=None, disposition=None, name=None,
                debug=False):
     """Set status, headers, and body in order to serve the given path.