diff --git a/packages/sysutils/busybox/scripts/dthelper b/packages/sysutils/busybox/scripts/dthelper
index 83bd436b55..a60e6b95f4 100755
--- a/packages/sysutils/busybox/scripts/dthelper
+++ b/packages/sysutils/busybox/scripts/dthelper
@@ -51,8 +51,7 @@ do_dtflag(){
     if [ "${MEMSIZE}" -lt "524288" ]; then
       MEMSIZE="-512"
     else
-      MEMSIZE=$(( $MEMSIZE / ( 1024 * 1024 ) + 1 ))
-      MEMSIZE="-${MEMSIZE}g"
+      MEMSIZE=""
     fi
   fi
   echo "${DTFLAG}${MEMSIZE}"