diff --git a/manpages/brew.1 b/manpages/brew.1
index 01e4263ead..55740e1170 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -1187,6 +1187,10 @@ When using Git, Homebrew will use \fBGIT\fR if set, a Homebrew\-built Git if ins
 Set this to force Homebrew to use a particular git binary\.
 .
 .TP
+\fBHOMEBREW_FORCE_BREWED_GIT\fR
+If set, Homebrew will use a Homebrew\-installed \fBgit\fR rather than the system version\.
+.
+.TP
 \fBHOMEBREW_GITHUB_API_TOKEN\fR
 A personal access token for the GitHub API, which you can create at \fIhttps://github\.com/settings/tokens\fR\. If set, GitHub will allow you a greater number of API requests\. See \fIhttps://developer\.github\.com/v3/#rate\-limiting\fR for more information\. Homebrew uses the GitHub API for features such as \fBbrew search\fR\.
 .