diff --git a/regions/regions.py b/regions/regions.py
index e23f0d2..2062f13 100755
--- a/regions/regions.py
+++ b/regions/regions.py
@@ -459,6 +459,9 @@
         'gb.usext', 'xkb:us:altgr-intl:eng', 'Europe/London', 'en-GB', KML.ISO,
         'UK (US extended keyboard)', (
             'GB with US extended keyboard')),
+    Region(
+        'jp.us', 'xkb:us::eng', 'Asia/Tokyo', 'ja', KML.ANSI,
+        'Japan with US keyboard'),
     ]
 
 """A list of :py:class:`regions.Region` objects for
@@ -1266,7 +1269,7 @@
         out.write(line[column_no].ljust(max_lengths[column_no] + 2))
       out.write('\n')
   else:
-    exit('Sorry, unknown format specified: %s' % args.format)
+    sys.exit('Sorry, unknown format specified: %s' % args.format)
 
 
 if __name__ == '__main__':