diff --git a/docs/api.md b/docs/api.md
index d7b20295..be3515ec 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -25,12 +25,12 @@ Content-Type: application/json
 | `vCodec`          | `string`  | `h264 / av1 / vp9`                 | `h264`    | applies only to youtube downloads. `h264` is recommended for phones.           |
 | `vQuality`        | `string`  | `144 / ... / 2160 / max`           | `720`     | `720` quality is recommended for phones.                                       |
 | `aFormat`         | `string`  | `best / mp3 / ogg / wav / opus`    | `mp3`     |                                                                                |
-| `filenamePattern` | `boolean` | `classic / pretty / basic / nerdy` | `classic` | changes the way files are named. previews can be seen in the web app.          |
+| `filenamePattern` | `string`  | `classic / pretty / basic / nerdy` | `classic` | changes the way files are named. previews can be seen in the web app.          |
 | `isAudioOnly`     | `boolean` | `true / false`                     | `false`   |                                                                                |
 | `isNoTTWatermark` | `boolean` | `true / false`                     | `false`   | changes whether downloaded tiktok videos have watermarks.                      |
 | `isTTFullAudio`   | `boolean` | `true / false`                     | `false`   | enables download of original sound used in a tiktok video.                     |
 | `isAudioMuted`    | `boolean` | `true / false`                     | `false`   | disables audio track in video downloads.                                       |
-| `dubLang`         | `boolean` | `true / false`                     | `false`   | backend uses Accept-Language hader for youtube video audio tracks when `true`. |
+| `dubLang`         | `boolean` | `true / false`                     | `false`   | backend uses Accept-Language header for youtube video audio tracks when `true`. |
 | `disableMetadata` | `boolean` | `true / false`                     | `false`   | disables file metadata when set to `true`.                                     |
 
 ### response body variables