diff --git a/kibot/out_diff.py b/kibot/out_diff.py
index 3f8dd73b..50f83532 100644
--- a/kibot/out_diff.py
+++ b/kibot/out_diff.py
@@ -408,8 +408,7 @@ class DiffOptions(BaseOptions):
             logger.debug('Checking out '+name+' to '+git_tmp_wd)
             self.run_git(['worktree', 'add', git_tmp_wd, name])
             self._worktrees_to_remove.append(git_tmp_wd)
-            self.run_git(['submodule', 'init'], cwd=git_tmp_wd)
-            self.run_git(['submodule', 'update'], cwd=git_tmp_wd)
+            self.run_git(['submodule', 'update', '--init', '--recursive'], cwd=git_tmp_wd)
             name_copy = self.run_git(['ls-files', '--full-name', self.file])
             name_copy = os.path.join(git_tmp_wd, name_copy)
             logger.debug('- Using temporal copy: '+name_copy)