diff --git a/usr.sbin/bhyve/bhyverun.c b/usr.sbin/bhyve/bhyverun.c
index d7f5a7b22..f18313450 100644
--- a/usr.sbin/bhyve/bhyverun.c
+++ b/usr.sbin/bhyve/bhyverun.c
@@ -220,6 +220,7 @@ usage(int code)
 		"       -C: include guest memory in core file\n"
 		"       -e: exit on unhandled I/O access\n"
 		"       -g: gdb port\n"
+		"       -G: debug server port\n"
 		"       -h: help\n"
 		"       -H: vmexit from the guest on hlt\n"
 		"       -l: LPC device configuration\n"