diff --git a/poky/scripts/lib/wic/ksparser.py b/poky/scripts/lib/wic/ksparser.py
index 3e67003..6a643ba 100644
--- a/poky/scripts/lib/wic/ksparser.py
+++ b/poky/scripts/lib/wic/ksparser.py
@@ -151,6 +151,8 @@
         part.add_argument('--part-name')
         part.add_argument('--part-type')
         part.add_argument('--rootfs-dir')
+        part.add_argument('--type', default='primary',
+                choices = ('primary', 'logical'))
 
         # --size and --fixed-size cannot be specified together; options
         # ----extra-space and --overhead-factor should also raise a parser