diff --git a/requestsync b/requestsync
index debaba9..1e64ff3 100755
--- a/requestsync
+++ b/requestsync
@@ -171,13 +171,14 @@ def raw_input_exit_on_ctrlc(*args, **kwargs):
         sys.exit(1)
 
 def usage():
-    print '''Usage: requestsync [-h|-n|-k <keyid>|--lp] <source package> <target release> [basever]
+    print '''Usage: requestsync [-d distro|-h|-n|-k <keyid>|--lp] <source package> <target release> [basever]
 
 In some cases, the base version (fork point from Debian) cannot be determined
 automatically, and you'll get a complete Debian changelog. Specify the correct
 base version of the package in Ubuntu.
 
 Options:
+	-d distro	override Debian distribution to sync from [unstable]
 	-h		print this help
 	-n		new source package (doesn't exist yet in Ubuntu)
 	-k <keyid>	sign email with <keyid> (only used when submitting per email)