diff --git a/usr.sbin/ctladm/ctladm.c b/usr.sbin/ctladm/ctladm.c
index 69124383d41..7705073958d 100644
--- a/usr.sbin/ctladm/ctladm.c
+++ b/usr.sbin/ctladm/ctladm.c
@@ -3964,7 +3964,7 @@ usage(int error)
 "-x                       : output port list in XML format\n"
 "lunmap options:\n"
 "-p targ_port             : specify target port number\n"
-"-L pLUN                  : specify port-visible LUN\n"
+"-l pLUN                  : specify port-visible LUN\n"
 "-L cLUN                  : specify CTL LUN\n",
 CTL_DEFAULT_DEV);
 }