diff --git a/bridge/bridge.c b/bridge/bridge.c
index 1fcd365a..1d59a1e1 100644
--- a/bridge/bridge.c
+++ b/bridge/bridge.c
@@ -27,7 +27,7 @@ static void usage(void)
 {
 	fprintf(stderr,
 "Usage: bridge [ OPTIONS ] OBJECT { COMMAND | help }\n"
-"where  OBJECT := { fdb |  monitor }\n"
+"where  OBJECT := { fdb |  mdb | monitor }\n"
 "       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails]\n" );
 	exit(-1);
 }