diff --git a/Library/Homebrew/manpages/brew-cask.1.md b/Library/Homebrew/manpages/brew-cask.1.md
index 5468f2bd3a..fcded40158 100644
--- a/Library/Homebrew/manpages/brew-cask.1.md
+++ b/Library/Homebrew/manpages/brew-cask.1.md
@@ -141,12 +141,6 @@ names, and other aspects of this manual are still subject to change.
 
 ## INTERNAL COMMANDS
 
-  * `_appcast_checkpoint` [--calculate] [ <token> ... | <URL> ... ]:
-    Given a <token>, returns the current appcast checkpoint, or calculates
-    the appcast checkpoint if the `--calculate` flag is specified.
-
-    Given a <URL>, calculates the appcast checkpoint for it.
-
   * `_stanza` <stanza_name> [ --table | --yaml | --inspect | --quiet ] [ <token> ... ]:
     Given a <stanza_name> and a <token>, returns the current stanza for a
     given Cask. If no <token> is given, then data for all Casks is returned.
diff --git a/manpages/brew-cask.1 b/manpages/brew-cask.1
index efe64e5988..4e5c10ea9b 100644
--- a/manpages/brew-cask.1
+++ b/manpages/brew-cask.1
@@ -136,13 +136,6 @@ If the Cask definition contains a \fBzap\fR stanza, performs additional \fBzap\f
 .SH "INTERNAL COMMANDS"
 .
 .TP
-\fB_appcast_checkpoint\fR [\-\-calculate] [ \fItoken\fR \.\.\. | \fIURL\fR \.\.\. ]
-Given a \fItoken\fR, returns the current appcast checkpoint, or calculates the appcast checkpoint if the \fB\-\-calculate\fR flag is specified\.
-.
-.IP
-Given a \fIURL\fR, calculates the appcast checkpoint for it\.
-.
-.TP
 \fB_stanza\fR \fIstanza_name\fR [ \-\-table | \-\-yaml | \-\-inspect | \-\-quiet ] [ \fItoken\fR \.\.\. ]
 Given a \fIstanza_name\fR and a \fItoken\fR, returns the current stanza for a given Cask\. If no \fItoken\fR is given, then data for all Casks is returned\.
 .