diff --git a/examples/mitmproxywrapper.py b/examples/mitmproxywrapper.py
index 751332b7f..344cd53b8 100755
--- a/examples/mitmproxywrapper.py
+++ b/examples/mitmproxywrapper.py
@@ -11,6 +11,8 @@ import subprocess
 import re
 import argparse
 import contextlib
+import os
+import sys
 
 class Wrapper(object):
     
@@ -103,6 +105,12 @@ class Wrapper(object):
             if self.proxy_enabled_for_service(service_name):
                 self.disable_proxy_for_service(service_name)
 
+    @classmethod
+    def ensure_superuser(cls):
+        if os.getuid() != 0:
+            print 'Relaunching with sudo...'
+            os.execv('/usr/bin/sudo', ['/usr/bin/sudo'] + sys.argv)
+
     @classmethod
     def main(cls):
         parser = argparse.ArgumentParser(description='Helper tool for OS X proxy configuration and mitmproxy')
@@ -122,5 +130,6 @@ class Wrapper(object):
 
 
 if __name__ == '__main__':
+    Wrapper.ensure_superuser()
     Wrapper.main()