diff --git a/scripts/lib/wic/imager/direct.py b/scripts/lib/wic/imager/direct.py
index 146a0d1..d5603fa 100644
--- a/scripts/lib/wic/imager/direct.py
+++ b/scripts/lib/wic/imager/direct.py
@@ -241,8 +241,7 @@
                     # IMAGE_OVERHEAD_FACTOR and IMAGE_ROOTFS_EXTRA_SPACE
                     rsize_bb = get_bitbake_var('ROOTFS_SIZE', image_name)
                     if rsize_bb:
-                        # convert from Kb to Mb
-                        part.size = int(round(float(rsize_bb) / 1024.))
+                        part.size = int(round(float(rsize_bb)))
             # need to create the filesystems in order to get their
             # sizes before we can add them and do the layout.
             # Image.create() actually calls __format_disks() to create