diff --git a/imagebuilder/kiosk.toml b/imagebuilder/kiosk.toml
index a2e0f44..0a97956 100644
--- a/imagebuilder/kiosk.toml
+++ b/imagebuilder/kiosk.toml
@@ -54,6 +54,10 @@ keyboard = "fr"
 [customizations.firewall]
 ports = ["22:tcp", "30000:tcp", "9090:tcp", "6443:tcp"]
 
+[[customizations.filesystem]]
+mountpoint = "/opt"
+size = 1073741824
+
 [[customizations.user]]
 name = "kiosk"
 description = "kiosk"