diff --git a/install.sh b/install.sh
index e93d53d..625da97 100755
--- a/install.sh
+++ b/install.sh
@@ -7,7 +7,7 @@ HOST=`hostname`
 # List of the config files to install
 FILES="vimrc zshrc gitconfig vim gitignore_global git_user"
 
-if [[ ! $1 == "--check" ]]
+if [[ ! -e $HOME/.git_user ]]
 then
     cp $SCRIPTPATH/git_user.def $SCRIPTPATH/git_user
     sed -i -e "s/{username}/$USER/" $SCRIPTPATH/git_user