diff --git a/Library/Homebrew/dev-cmd/man.rb b/Library/Homebrew/dev-cmd/man.rb
index 6c0c00747a..d34d559f76 100644
--- a/Library/Homebrew/dev-cmd/man.rb
+++ b/Library/Homebrew/dev-cmd/man.rb
@@ -4,6 +4,8 @@
 #:    If `--fail-if-changed` is passed, the command will return a failing
 #:    status code if changes are detected in the manpage outputs.
 #:    This can be used for CI to be notified when the manpages are out of date.
+#:    Additionally, the date used in new manpages will match those in the existing
+#:    manpages (to allow comparison without factoring in the date).
 
 require "formula"
 require "erb"
diff --git a/docs/brew.1.html b/docs/brew.1.html
index c5cb7f6424..bfdd885f0e 100644
--- a/docs/brew.1.html
+++ b/docs/brew.1.html
@@ -529,7 +529,9 @@ which link to it for each library the keg references.</p></dd>
 
 <p>If <code>--fail-if-changed</code> is passed, the command will return a failing
 status code if changes are detected in the manpage outputs.
-This can be used for CI to be notified when the manpages are out of date.</p></dd>
+This can be used for CI to be notified when the manpages are out of date.
+Additionally, the date used in new manpages will match those in the existing
+manpages (to allow comparison without factoring in the date).</p></dd>
 </dl>
 
 
diff --git a/manpages/brew-cask.1 b/manpages/brew-cask.1
index 850d69489d..8b969221d8 100644
--- a/manpages/brew-cask.1
+++ b/manpages/brew-cask.1
@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "BREW\-CASK" "1" "September 2016" "Homebrew" "brew-cask"
+.TH "BREW\-CASK" "1" "October 2016" "Homebrew" "brew-cask"
 .
 .SH "NAME"
 \fBbrew\-cask\fR \- a friendly binary installer for macOS
diff --git a/manpages/brew.1 b/manpages/brew.1
index f32a6282b7..2642a0e281 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "BREW" "1" "September 2016" "Homebrew" "brew"
+.TH "BREW" "1" "October 2016" "Homebrew" "brew"
 .
 .SH "NAME"
 \fBbrew\fR \- The missing package manager for macOS
@@ -730,7 +730,7 @@ If \fB\-\-reverse\fR is passed, print the dylib followed by the binaries which l
 Generate Homebrew\'s manpages\.
 .
 .IP
-If \fB\-\-fail\-if\-changed\fR is passed, the command will return a failing status code if changes are detected in the manpage outputs\. This can be used for CI to be notified when the manpages are out of date\.
+If \fB\-\-fail\-if\-changed\fR is passed, the command will return a failing status code if changes are detected in the manpage outputs\. This can be used for CI to be notified when the manpages are out of date\. Additionally, the date used in new manpages will match those in the existing manpages (to allow comparison without factoring in the date)\.
 .
 .P
 \fBpull\fR [\fB\-\-bottle\fR] [\fB\-\-bump\fR] [\fB\-\-clean\fR] [\fB\-\-ignore\-whitespace\fR] [\fB\-\-resolve\fR] [\fB\-\-branch\-okay\fR] [\fB\-\-no\-pbcopy\fR] [\fB\-\-no\-publish\fR] \fIpatch\-source\fR [\fIpatch\-source\fR]