diff --git a/app-hooks/post-installation/install-calendar-app.sh b/app-hooks/post-installation/install-calendar-app.sh
new file mode 100755
index 0000000..88cc244
--- /dev/null
+++ b/app-hooks/post-installation/install-calendar-app.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+php /var/www/html/occ app:enable calendar