diff --git a/doc/bash.1 b/doc/bash.1

index 6e8aebb..e846e68 100644

--- a/doc/bash.1

+++ b/doc/bash.1

@@ -10333,6 +10333,7 @@ and

 which are in 512-byte increments.

 The return status is 0 unless an invalid option or argument is supplied,

 or an error occurs while setting a new limit.

+In POSIX Mode 512-byte blocks are used for the `-c' and `-f' options.

 .RE

 .TP

 \fBumask\fP [\fB\-p\fP] [\fB\-S\fP] [\fImode\fP]

-- 

2.9.3