diff --git a/docs/Manpage.md b/docs/Manpage.md
index 539e4c7277..bb058d8a68 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -2075,6 +2075,9 @@ example, run `export HOMEBREW_NO_INSECURE_REDIRECT=1` rather than just
 - `HOMEBREW_SIMULATE_MACOS_ON_LINUX`
   <br>If set, running Homebrew on Linux will simulate certain macOS code paths. This is useful when auditing macOS formulae while on Linux. Implies `HOMEBREW_FORCE_HOMEBREW_ON_LINUX`.
 
+- `HOMEBREW_FORCE_HOMEBREW_CORE_REPO_ON_LINUX`
+  <br>If set, running Homebrew on Linux will use homebrew-core instead of linuxbrew-core.
+
 - `HOMEBREW_SKIP_OR_LATER_BOTTLES`
   <br>If set along with `HOMEBREW_DEVELOPER`, do not use bottles from older versions of macOS. This is useful in development on new macOS versions.
 
diff --git a/manpages/brew.1 b/manpages/brew.1
index d801339d2a..b5c10b48ec 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -3016,6 +3016,12 @@ If set, use Pry for the \fBbrew irb\fR command\.
 If set, running Homebrew on Linux will simulate certain macOS code paths\. This is useful when auditing macOS formulae while on Linux\. Implies \fBHOMEBREW_FORCE_HOMEBREW_ON_LINUX\fR\.
 .
 .TP
+\fBHOMEBREW_FORCE_HOMEBREW_CORE_REPO_ON_LINUX\fR
+.
+.br
+If set, running Homebrew on Linux will use homebrew\-core instead of linuxbrew\-core\.
+.
+.TP
 \fBHOMEBREW_SKIP_OR_LATER_BOTTLES\fR
 .
 .br