1 files changed, 3 insertions, 0 deletions
diff --git a/pep8.py b/pep8.py
index 1e6e3ba..1a85cee 100755
--- a/pep8.py
+++ b/pep8.py
@@ -1182,6 +1182,9 @@ class Checker(object):
         if filename is None:
             self.filename = 'stdin'
             self.lines = lines or []
+        elif filename == '-':
+            self.filename = 'stdin'
+            self.lines = stdin_get_value().splitlines(True)
         elif lines is None:
             try:
                 self.lines = readlines(filename)