diff --git a/docs/Manpage.md b/docs/Manpage.md
index a643b40a43954..6af692718b427 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -1856,7 +1856,7 @@ This sanitized build environment ignores unrequested dependencies, which makes s
 * `-f`, `--force`:
   `install` runs with `--force`/`--overwrite`. `dump` overwrites an existing `Brewfile`. `cleanup` actually performs its cleanup operations.
 * `--cleanup`:
-  `install` performs cleanup operation, same as running `cleanup --force`. This is enabled by default if HOMEBREW_BUNDLE_INSTALL_CLEANUP is set.
+  `install` performs cleanup operation, same as running `cleanup --force`. This is enabled by default if HOMEBREW_BUNDLE_INSTALL_CLEANUP is set and `--global` is passed.
 * `--no-lock`:
   `install` won't output a `Brewfile.lock.json`.
 * `--all`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index d2eaee580d905..35d5e6dbeff65 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -2638,7 +2638,7 @@ Read the \fBBrewfile\fR from \fB~/\.Brewfile\fR or the \fBHOMEBREW_BUNDLE_FILE_G
 .
 .TP
 \fB\-\-cleanup\fR
-\fBinstall\fR performs cleanup operation, same as running \fBcleanup \-\-force\fR\. This is enabled by default if HOMEBREW_BUNDLE_INSTALL_CLEANUP is set\.
+\fBinstall\fR performs cleanup operation, same as running \fBcleanup \-\-force\fR\. This is enabled by default if HOMEBREW_BUNDLE_INSTALL_CLEANUP is set and \fB\-\-global\fR is passed\.
 .
 .TP
 \fB\-\-no\-lock\fR