diff --git a/tools/csr.c b/tools/csr.c
index 93ad5de9c..b82eed816 100644
--- a/tools/csr.c
+++ b/tools/csr.c
@@ -358,6 +358,7 @@ static struct {
 	{ 2622, "Marcel 3 (2005-10-27)"	},
 	{ 3326, "Marcel 4 (2006-06-16)"	},
 	{ 3612, "Marcel 5 (2006-10-24)"	},
+	{ 4509, "Marcel 6 (2007-06-11)"	},
 	{  195, "Sniff 1 (2001-11-27)"	},
 	{  220, "Sniff 2 (2002-01-03)"	},
 	{  269, "Sniff 3 (2002-02-22)"	},