diff --git a/flake8/pep8.py b/flake8/pep8.py
index 63187eb..01d512e 100644
--- a/flake8/pep8.py
+++ b/flake8/pep8.py
@@ -1205,7 +1205,8 @@ class Checker(object):
         self.line_number += 1
         if self.line_number > len(self.lines):
             return ''
-        return self.lines[self.line_number - 1]
+        line = self.lines[self.line_number - 1]
+        return '' if line.lower().strip().endswith('# nopep8') else line
 
     def readline_check_physical(self):
         """
@@ -1882,7 +1883,7 @@ def process_options(arglist=None, parse_argv=False, config_file=None):
                       help="use exit code 0 (success), even if there are "
                         "warnings")
     parser.add_option('--max-complexity', default=-1, action='store',
-                      type='int', help="McCabe complexity treshold")
+                      type='int', help="McCabe complexity threshold")
 
     options, args = parser.parse_args(arglist)
     options.reporter = None