diff --git a/katsu/modules/flagship/base-disk-x86_64.yaml b/katsu/modules/flagship/base-disk-x86_64.yaml
index 428b340..0f28be7 100644
--- a/katsu/modules/flagship/base-disk-x86_64.yaml
+++ b/katsu/modules/flagship/base-disk-x86_64.yaml
@@ -20,7 +20,7 @@ scripts:
       file: ../base/grub-setup.sh
 
 disk:
-  size: 10GiB
+  size: 10GB
   partitions:
     - label: EFI
       type: esp
diff --git a/katsu/modules/gnome/base-disk-x86_64.yaml b/katsu/modules/gnome/base-disk-x86_64.yaml
index 86482a4..557aa4b 100644
--- a/katsu/modules/gnome/base-disk-x86_64.yaml
+++ b/katsu/modules/gnome/base-disk-x86_64.yaml
@@ -20,7 +20,7 @@ scripts:
       file: ../base/grub-setup.sh
 
 disk:
-  size: 10GiB
+  size: 10GB
   partitions:
     - label: EFI
       type: esp
diff --git a/katsu/modules/kde/base-disk-x86_64.yaml b/katsu/modules/kde/base-disk-x86_64.yaml
index 1c7fcac..fa904fa 100644
--- a/katsu/modules/kde/base-disk-x86_64.yaml
+++ b/katsu/modules/kde/base-disk-x86_64.yaml
@@ -21,7 +21,7 @@ scripts:
       file: ../base/grub-setup.sh
 
 disk:
-  size: 13GiB
+  size: 13GB
   partitions:
     - label: EFI
       type: esp
diff --git a/katsu/modules/xfce/base-disk-x86_64.yaml b/katsu/modules/xfce/base-disk-x86_64.yaml
index 3efd603..8ff1b17 100644
--- a/katsu/modules/xfce/base-disk-x86_64.yaml
+++ b/katsu/modules/xfce/base-disk-x86_64.yaml
@@ -20,7 +20,7 @@ scripts:
       file: ../base/grub-setup.sh
 
 disk:
-  size: 10GiB
+  size: 10GB
   partitions:
     - label: EFI
       type: esp