diff --git a/osx/uninstall.sh b/osx/uninstall.sh
index 5e29e137..c86b707d 100755
--- a/osx/uninstall.sh
+++ b/osx/uninstall.sh
@@ -12,7 +12,7 @@ while true; do
   case $yn in
     [Yy]* ) docker-machine rm -f $(docker-machine ls -q); break;;
     [Nn]* ) break;;
-    * ) echo "Please answer yes or no.";;
+    * ) echo "Please answer yes or no."; exit 1;;
   esac
 done