diff --git a/website/docs/api/cli.md b/website/docs/api/cli.md
index 474448d60..ef3e6f84a 100644
--- a/website/docs/api/cli.md
+++ b/website/docs/api/cli.md
@@ -210,7 +210,7 @@ $ python -m spacy train [lang] [output_path] [train_path] [dev_path]
 | `output_path`                                         | positional    | Directory to store model in. Will be created if it doesn't exist.                                                                                                 |
 | `train_path`                                          | positional    | Location of JSON-formatted training data. Can be a file or a directory of files.                                                                                  |
 | `dev_path`                                            | positional    | Location of JSON-formatted development data for evaluation. Can be a file or a directory of files.                                                                |
-| `--base-model`, `-b`                                  | option        | Optional name of base model to update. Can be any loadable spaCy model.                                                                                           |
+| `--base-model`, `-b` <Tag variant="new">2.1</Tag>     | option        | Optional name of base model to update. Can be any loadable spaCy model.                                                                                           |
 | `--pipeline`, `-p` <Tag variant="new">2.1</Tag>       | option        | Comma-separated names of pipeline components to train. Defaults to `'tagger,parser,ner'`.                                                                         |
 | `--vectors`, `-v`                                     | option        | Model to load vectors from.                                                                                                                                       |
 | `--n-iter`, `-n`                                      | option        | Number of iterations (default: `30`).                                                                                                                             |