diff --git a/share/man/man9/VOP_ADVISE.9 b/share/man/man9/VOP_ADVISE.9
index 50cd8606081d..7cc29162f821 100644
--- a/share/man/man9/VOP_ADVISE.9
+++ b/share/man/man9/VOP_ADVISE.9
@@ -27,7 +27,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 3, 2013
+.Dd September 26, 2015
 .Dt VOP_ADVISE 9
 .Os
 .Sh NAME
@@ -52,6 +52,9 @@ The vnode of the file.
 The start of the range of file data.
 .It Fa end
 The end of the range of file data.
+A value of
+.Dv OFF_MAX
+indicates that the advice is to be applied up to the end of the file.
 .It Fa advice
 The type of operation to apply to the file data.
 Possible values are: