diff --git a/Library/Homebrew/brew.sh b/Library/Homebrew/brew.sh
index 421129f8b5..de3d5b5e54 100644
--- a/Library/Homebrew/brew.sh
+++ b/Library/Homebrew/brew.sh
@@ -27,7 +27,7 @@ esac
 export HOMEBREW_COMMAND_DEPTH=$((HOMEBREW_COMMAND_DEPTH + 1))
 
 ohai() {
-  if [[ -t 1 && -z "$HOMEBREW_NO_COLOR" ]] # check whether stdout is a tty.
+  if [[ -n "$HOMEBREW_COLOR" || (-t 1 && -z "$HOMEBREW_NO_COLOR") ]] # check whether stdout is a tty.
   then
     echo -e "\\033[34m==>\\033[0m \\033[1m$*\\033[0m" # blue arrow and bold text
   else
@@ -36,7 +36,7 @@ ohai() {
 }
 
 onoe() {
-  if [[ -t 2 && -z "$HOMEBREW_NO_COLOR" ]] # check whether stderr is a tty.
+  if [[ -n "$HOMEBREW_COLOR" || (-t 2 && -z "$HOMEBREW_NO_COLOR") ]] # check whether stderr is a tty.
   then
     echo -ne "\\033[4;31mError\\033[0m: " >&2 # highlight Error with underline and red color
   else