diff --git a/completions/bash/brew b/completions/bash/brew
index 2678e3d9d8..2f064c72c0 100644
--- a/completions/bash/brew
+++ b/completions/bash/brew
@@ -126,6 +126,7 @@ _brew___cache() {
       __brewcomp "
       --HEAD
       --arch
+      --bottle-tag
       --build-from-source
       --cask
       --debug
diff --git a/completions/fish/brew.fish b/completions/fish/brew.fish
index f5328efdc2..b9963a96e1 100644
--- a/completions/fish/brew.fish
+++ b/completions/fish/brew.fish
@@ -193,6 +193,7 @@ end
 __fish_brew_complete_cmd '--cache' 'Display Homebrew\'s download cache'
 __fish_brew_complete_arg '--cache' -l HEAD -d 'Show the cache file used when building from HEAD'
 __fish_brew_complete_arg '--cache' -l arch -d 'Show cache file for the given CPU architecture.(Pass `all` to show cache files for all architectures.)'
+__fish_brew_complete_arg '--cache' -l bottle-tag -d 'Show the cache file used when pouring a bottle for the given tag'
 __fish_brew_complete_arg '--cache' -l build-from-source -d 'Show the cache file used when building from source'
 __fish_brew_complete_arg '--cache' -l cask -d 'Only show cache files for casks'
 __fish_brew_complete_arg '--cache' -l debug -d 'Display any debugging information'
diff --git a/completions/zsh/_brew b/completions/zsh/_brew
index 1abb5c34aa..62654ac1ef 100644
--- a/completions/zsh/_brew
+++ b/completions/zsh/_brew
@@ -264,6 +264,7 @@ _brew___cache() {
   _arguments \
     '(--build-from-source --force-bottle --bottle-tag --cask)--HEAD[Show the cache file used when building from HEAD]' \
     '(--bottle-tag)--arch[Show cache file for the given CPU architecture.(Pass `all` to show cache files for all architectures.)]' \
+    '(--build-from-source --force-bottle --HEAD --cask --os --arch)--bottle-tag[Show the cache file used when pouring a bottle for the given tag]' \
     '(--force-bottle --bottle-tag --HEAD --cask)--build-from-source[Show the cache file used when building from source]' \
     '--debug[Display any debugging information]' \
     '(--build-from-source --bottle-tag --HEAD --cask)--force-bottle[Show the cache file used when pouring a bottle]' \
diff --git a/docs/Manpage.md b/docs/Manpage.md
index d0de949190..ff1a38211d 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -856,6 +856,8 @@ If *`formula`* is provided, display the file or directory used to cache *`formul
   Show the cache file used when building from source.
 * `--force-bottle`:
   Show the cache file used when pouring a bottle.
+* `--bottle-tag`:
+  Show the cache file used when pouring a bottle for the given tag.
 * `--HEAD`:
   Show the cache file used when building from HEAD.
 * `--formula`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index 4eb6009fda..10540bed32 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -1211,6 +1211,10 @@ Show the cache file used when building from source\.
 Show the cache file used when pouring a bottle\.
 .
 .TP
+\fB\-\-bottle\-tag\fR
+Show the cache file used when pouring a bottle for the given tag\.
+.
+.TP
 \fB\-\-HEAD\fR
 Show the cache file used when building from HEAD\.
 .