diff --git a/AUTHORS b/AUTHORS
index 905cccc7ed..e1a18adf9d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -117,7 +117,7 @@ answer newbie questions, and generally made Django that much better:
     glin@seznam.cz
     martin.glueck@gmail.com
     GomoX <gomo@datafull.com>
-    Mario Gonzalez <gonzalemario @t gmail.com>
+    Mario Gonzalez <gonzalemario@gmail.com>
     Simon Greenhill <dev@simon.net.nz>
     Owen Griffiths
     Espen Grindhaug <http://grindhaug.org/>
diff --git a/django/core/management.py b/django/core/management.py
index 06a9a6857c..4c68417517 100644
--- a/django/core/management.py
+++ b/django/core/management.py
@@ -1236,7 +1236,8 @@ def runserver(addr, port, use_reloader=True, admin_media_dir=''):
             except (AttributeError, KeyError):
                 error_text = str(e)
             sys.stderr.write(style.ERROR("Error: %s" % error_text) + '\n')
-            sys.exit(1)
+            # Need to use an OS exit because sys.exit doesn't work in a thread
+            os._exit(1)
         except KeyboardInterrupt:
             sys.exit(0)
     if use_reloader: