diff --git a/install.sh b/install.sh
index c502a56..ceb6809 100755
--- a/install.sh
+++ b/install.sh
@@ -3,6 +3,7 @@
 if [ $# -eq 0 ]
   then
     echo "Git branch name missing"
+    exit 1;
 fi
 
 echo ".dotfiles" >> $HOME/.gitignore