diff --git a/.zshenv b/.zshenv
index 7c207c9..afeb20d 100644
--- a/.zshenv
+++ b/.zshenv
@@ -10,7 +10,9 @@ bindkey '\e[6~' end-of-history # Page down key
 bindkey '\e[2~' redisplay # Insert key
 bindkey '\e[5~' insert-last-word # Page up key
 
-export GOPATH="$HOME/.go/"
+if [ -z "$GOPATH" ]; then
+  export GOPATH="$HOME/.go/"
+fi
 
 # remove /usr/games and /usr/X11R6/bin if you want
 PATH=$HOME/bin:/bin:/sbin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/usr/games:/usr/X11R6/bin:/$HOME/.gem/ruby/1.9.1/bin:$HOME/.cabal/bin:$HOME/.go/bin:/usr/lib/go/bin:$PATH; export PATH