diff --git a/Library/Homebrew/brew.sh b/Library/Homebrew/brew.sh
index c5ffd29dda..5d4eafd519 100644
--- a/Library/Homebrew/brew.sh
+++ b/Library/Homebrew/brew.sh
@@ -12,7 +12,16 @@ then
   then
     export LC_ALL="en_US.UTF-8"
   else
-    export LC_ALL="C.UTF-8"
+    locales=$(locale -a)
+    c_utf_regex='\bC\.(utf8|UTF-8)\b'
+    en_us_regex='\ben_US\.(utf8|UTF-8)\b'
+    utf_regex='\b[a-z][a-z]_[A-Z][A-Z]\.(utf8|UTF-8)\b'
+    if [[ $locales =~ $c_utf_regex || $locales =~ $en_us_regex || $locales =~ $utf_regex ]]
+    then
+      export LC_ALL=${BASH_REMATCH[0]}
+    else
+      export LC_ALL=C
+    fi
   fi
 fi