diff --git a/tools/install.sh b/tools/install.sh
index 5c7a5b6c..343f251a 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -1,3 +1,5 @@
+set -e
+
 if [ ! -n $ZSH ]
 then
   ZSH=~/.oh-my-zsh