diff --git a/docs/Manpage.md b/docs/Manpage.md
index b43aeff9db903..c9d3c95d9b325 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -2031,6 +2031,8 @@ Database update for `brew which-formula`
   Update database entries with outdated formula versions.
 * `--install-missing`:
   Install and update formulae that are missing from the database and don't have bottles.
+* `--eval-all`:
+  Evaluate all installed taps, rather than just the core tap.
 * `--max-downloads`:
   Specify a maximum number of formulae to download and update.
 
diff --git a/manpages/brew.1 b/manpages/brew.1
index 5286d72d9464c..091a347691bec 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -2925,6 +2925,10 @@ Update database entries with outdated formula versions\.
 Install and update formulae that are missing from the database and don\'t have bottles\.
 .
 .TP
+\fB\-\-eval\-all\fR
+Evaluate all installed taps, rather than just the core tap\.
+.
+.TP
 \fB\-\-max\-downloads\fR
 Specify a maximum number of formulae to download and update\.
 .