diff --git a/stand/man/loader_simp.8 b/stand/man/loader_simp.8
--- a/stand/man/loader_simp.8
+++ b/stand/man/loader_simp.8
@@ -141,6 +141,13 @@
 Any flags or arguments are passed to the kernel, but they
 must precede the kernel name, if a kernel name is provided.
 .Pp
+.It Ic disable-module Ar module-name
+Disables the kernel module named
+.Dq Ar module-name
+for the subsequent
+.Ic boot
+only.
+.Pp
 .It Ic echo Xo
 .Op Fl n
 .Op Aq message