Set ENV variables to strings, not pathnames

1 files changed, 1 insertions, 1 deletions

diff --git a/Library/brew.rb b/Library/brew.rb
index 4874aeb96..d482fd1a3 100755
--- a/Library/brew.rb
+++ b/Library/brew.rb
@@ -106,7 +106,7 @@ begin
     Homebrew.send cmd.to_s.gsub('-', '_').downcase
   elsif which "brew-#{cmd}"
     %w[CACHE CELLAR LIBRARY_PATH PREFIX REPOSITORY].each do |e|
-      ENV["HOMEBREW_#{e}"] = Object.const_get "HOMEBREW_#{e}"
+      ENV["HOMEBREW_#{e}"] = Object.const_get("HOMEBREW_#{e}").to_s
     end
     exec "brew-#{cmd}", *ARGV
   elsif require? which("brew-#{cmd}.rb").to_s