diff --git a/containers/zammad-postgresql/backup.sh b/containers/zammad-postgresql/backup.sh
old mode 100644
new mode 100755
diff --git a/containers/zammad/setup.sh b/containers/zammad/setup.sh
old mode 100644
new mode 100755
index 8446462..00d16e2
--- a/containers/zammad/setup.sh
+++ b/containers/zammad/setup.sh
@@ -10,7 +10,7 @@ fi
 
 apt-get update
 apt-get upgrade -y
-apt-get install -y --no-install-recommends ${PACKAGES}
+apt-get install -y --no-install-recommends "${PACKAGES}"
 rm -rf /var/lib/apt/lists/*
 
 # install gosu