diff --git a/doc/source/user_guide/building_an_image.rst b/doc/source/user_guide/building_an_image.rst
index 67de29ef..e7d2ae8b 100644
--- a/doc/source/user_guide/building_an_image.rst
+++ b/doc/source/user_guide/building_an_image.rst
@@ -444,7 +444,7 @@ Example:
         pvs:
           - name: pv
             options: ["--force"]
-            device: root
+            base: root
 
         vgs:
           - name: vg