diff --git a/run b/run
index a3cd268..4255a1f 100755
--- a/run
+++ b/run
@@ -572,6 +572,7 @@ Extra options to append at the end of the emulator command line.
                             'arm',
                             'fs_bigLITTLE.py'
                         ), LF,
+                        '--bootscript', self.env['gem5_readfile_file'], LF,
                         '--big-cpus', str((self.env['cpus'] + 1) // 2), LF,
                         '--cpu-type', cpu_type, LF,
                         '--disk', self.env['disk_image'], LF,