diff --git a/supportFiles/box-install b/supportFiles/box-install
index 8c5c929..27b6167 100644
--- a/supportFiles/box-install
+++ b/supportFiles/box-install
@@ -6,6 +6,6 @@ if [[ -z $image ]]; then
     exit -1
 fi
 
-dd if=$image of=/dev/nvme0n1 status=progress; sync
+dd if=$image of=/dev/nvme0n1 status=progress bs=4096; sync
 
-echo "install success"
\ No newline at end of file
+echo "install success"