diff --git a/deploy.sh b/deploy.sh
index b80faca..dc521b9 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -3,9 +3,11 @@
 source=public/
 target=apps@spock.ariejan.net:/home/apps/sites/ariejan.net
 
-if [ ! `git symbolic-ref HEAD | grep -q "refs/heads/master"` ] ; then
+
+git symbolic-ref HEAD | grep -q "refs/heads/master"
+if [ $? != 0 ] ; then
     echo "You are not on the 'master' branch. Not deploying."
-    exit
+    exit 1
 fi
 
 if [ -d ./public ] ; then