diff --git a/sample_images/generate_images.sh b/sample_images/generate_images.sh
index 8478682..e0b54ae 100755
--- a/sample_images/generate_images.sh
+++ b/sample_images/generate_images.sh
@@ -270,6 +270,7 @@
   # Add squashfs sample images.
   generate_image disk_sqfs_empty sqfs empty $((1024 * 4096)) 4096
   generate_image disk_sqfs_default sqfs default $((1024 * 4096)) 4096
+  generate_image disk_sqfs_unittest sqfs unittest $((1024 * 4096)) 4096
 
   # Generate the tarball and delete temporary images.
   echo "Packing tar file sample_images.tar.bz2"
diff --git a/sample_images/sample_images.tar.bz2 b/sample_images/sample_images.tar.bz2
index 6215482..5c80a51 100644
--- a/sample_images/sample_images.tar.bz2
+++ b/sample_images/sample_images.tar.bz2
Binary files differ