diff --git a/docs/config.md b/docs/config.md
index f59ee4be623..0b0d13d19ab 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -977,7 +977,7 @@ Valid values:
 | `hide_agent_reasoning`                           | boolean                                                           | Hide model reasoning events.                                                                                                    |
 | `check_for_update_on_startup`                    | boolean                                                           | Check for Codex updates on startup (default: true). Set to `false` only if updates are centrally managed.                       |
 | `show_raw_agent_reasoning`                       | boolean                                                           | Show raw reasoning (when available).                                                                                            |
-| `model_reasoning_effort`                         | `minimal` \| `low` \| `medium` \| `high`\|`xhigh`                  | Responses API reasoning effort.                                                                                                 |
+| `model_reasoning_effort`                         | `minimal` \| `low` \| `medium` \| `high`\|`xhigh`                 | Responses API reasoning effort.                                                                                                 |
 | `model_reasoning_summary`                        | `auto` \| `concise` \| `detailed` \| `none`                       | Reasoning summaries.                                                                                                            |
 | `model_verbosity`                                | `low` \| `medium` \| `high`                                       | GPT‑5 text verbosity (Responses API).                                                                                           |
 | `model_supports_reasoning_summaries`             | boolean                                                           | Force‑enable reasoning summaries.                                                                                               |