diff --git a/au_test_harness/vm_au_worker.py b/au_test_harness/vm_au_worker.py
index aafed3b..c6ae296 100644
--- a/au_test_harness/vm_au_worker.py
+++ b/au_test_harness/vm_au_worker.py
@@ -63,7 +63,7 @@
     cmd = ['%s/bin/cros_run_vm_update' % constants.CROSUTILS_DIR,
            '--vm_image_path=%s' % self.vm_image_path,
            '--update_log=%s' % os.path.join(log_directory, 'update_engine.log'),
-           '--snapshot',
+           '--copy',
            self.graphics_flag,
            '--persist',
            '--kvm_pid=%s' % self._kvm_pid_file,
@@ -89,7 +89,7 @@
            '--payload=%s' % update_path,
            '--vm_image_path=%s' % self.vm_image_path,
            '--update_log=%s' % os.path.join(log_directory, 'update_engine.log'),
-           '--snapshot',
+           '--copy',
            self.graphics_flag,
            '--persist',
            '--kvm_pid=%s' % self._kvm_pid_file,
@@ -130,7 +130,7 @@
 
     command = ['./bin/cros_run_vm_test',
                '--image_path=%s' % self.vm_image_path,
-               '--snapshot',
+               '--copy',
                '--persist',
                '--kvm_pid=%s' % self._kvm_pid_file,
                '--ssh_port=%s' % self._ssh_port,
diff --git a/utils_py/cros_run_parallel_vm_tests.py b/utils_py/cros_run_parallel_vm_tests.py
index 151206d..02b742a 100755
--- a/utils_py/cros_run_parallel_vm_tests.py
+++ b/utils_py/cros_run_parallel_vm_tests.py
@@ -73,7 +73,7 @@
       # Must run outside the chroot and use src path.
       args = [ os.path.join(os.path.dirname(os.path.realpath(__file__)),
                             '../cros_run_vm_test'),
-               '--snapshot', # The image is shared so don't modify it.
+               '--copy', # The image is shared so don't modify it.
                '--no_graphics',
                '--use_emerged',
                '--verbose=1',