diff --git a/bigboot-v3.yml b/bigboot-v3.yml
index c80a739..398f011 100644
--- a/bigboot-v3.yml
+++ b/bigboot-v3.yml
@@ -5,7 +5,7 @@
   gather_facts: true
 
   vars:
-    bigboot_size: 2G
+    bigboot_size: "{{ bigboot_size | default(bigboot_size_default) }}"
 
   tasks:
     - name: Capture boot device details
diff --git a/group_vars/all b/group_vars/all
index a00f2e1..981f43e 100644
--- a/group_vars/all
+++ b/group_vars/all
@@ -1,4 +1,8 @@
 ---
+# Default size for Bigboot if otherwise
+# not defined
+bigboot_size_default: 1G
+
 # We use padding just to ensure there's
 # available space to expand /boot to.
 #