diff --git a/django/core/handlers/wsgi.py b/django/core/handlers/wsgi.py
index 537154c0cb..058f9c307f 100644
--- a/django/core/handlers/wsgi.py
+++ b/django/core/handlers/wsgi.py
@@ -261,7 +261,7 @@ class WSGIHandler(base.BaseHandler):
             try:
                 request = self.request_class(environ)
             except UnicodeDecodeError:
-                logger.warning('Bad Request (UnicodeDecodeError): %s' % request.path,
+                logger.warning('Bad Request (UnicodeDecodeError)',
                     exc_info=sys.exc_info(),
                     extra={
                         'status_code': 400,