diff --git a/sbin/iscontrol/iscontrol.8 b/sbin/iscontrol/iscontrol.8
index aaa126dc06ec..71595db23ab7 100644
--- a/sbin/iscontrol/iscontrol.8
+++ b/sbin/iscontrol/iscontrol.8
@@ -34,7 +34,7 @@
 .Nm
 .Op Fl vd
 .Oo
-.Op Fl Ar file
+.Op Fl c Ar file
 .Op Fl n Ar nickname
 .Oc
 .Op Fl t Ar target