diff --git a/debian/variables.tf b/debian/variables.tf
index 4214f0f..c810538 100644
--- a/debian/variables.tf
+++ b/debian/variables.tf
@@ -69,7 +69,7 @@ variable "fixed_dns" {
 
 variable "disk_size" {
   type    = number
-  default = 1024 * 1024 * 1024 * 15
+  default = 1024 * 1024 * 1024 * 25
 }
 
 variable "ca_key" {