diff --git a/sample_images/generate_images.sh b/sample_images/generate_images.sh
index 1c2a83c..17bb11c 100755
--- a/sample_images/generate_images.sh
+++ b/sample_images/generate_images.sh
@@ -184,7 +184,7 @@
   # Generate the tarball and delete temporary images.
   echo "Packing tar file sample_images.tar.bz2"
   tar -jcf "${OUTPUT_DIR}/sample_images.tar.bz2" -C "${OUTPUT_DIR}" \
-    "${IMAGES[@]}"
+    --sparse "${IMAGES[@]}"
   cd "${OUTPUT_DIR}"
   rm "${IMAGES[@]}"
 }
diff --git a/sample_images/sample_images.tar.bz2 b/sample_images/sample_images.tar.bz2
index 83141ab..fe1a80a 100644
--- a/sample_images/sample_images.tar.bz2
+++ b/sample_images/sample_images.tar.bz2
Binary files differ