diff --git a/Library/Homebrew/dev-cmd/edit.rb b/Library/Homebrew/dev-cmd/edit.rb
index 618ce68cca..b8c5f4bf6a 100644
--- a/Library/Homebrew/dev-cmd/edit.rb
+++ b/Library/Homebrew/dev-cmd/edit.rb
@@ -85,6 +85,8 @@ module Homebrew
   def edit
     args = edit_args.parse
 
+    ENV["COLORTERM"] = ENV.fetch("HOMEBREW_COLORTERM", nil)
+
     unless (HOMEBREW_REPOSITORY/".git").directory?
       odie <<~EOS
         Changes will be lost!
diff --git a/bin/brew b/bin/brew
index f0231165d6..e842609c5d 100755
--- a/bin/brew
+++ b/bin/brew
@@ -152,6 +152,7 @@ done
 # We don't want to take the user's value for, e.g., `HOMEBREW_PATH` here!
 USED_BY_HOMEBREW_VARS=(
   CODESPACES
+  COLORTERM
   DBUS_SESSION_BUS_ADDRESS
   PATH
   SSH_TTY