---
title: Filter RSS post thumbnail size
url: "https://www.seopress.org/support/hooks/filter-rss-post-thumbnail-size/"
lang: en-US
updated: 2023-07-06
hook_name: seopress_rss_post_thumb_size
required_version: 6.7
---

# Filter RSS post thumbnail size

- **Hook name:** `seopress_rss_post_thumb_size`
- **Required version:** 6.7

```php
add_filter('seopress_rss_post_thumb_size', 'sp_rss_post_thumb_size');
function sp_rss_post_thumb_size($size) {
    //Will be used with wp_get_attachment_image_src() https://developer.wordpress.org/reference/functions/wp_get_attachment_image_src/
    
    $size = 'thumbnail'; //Accepts any registered image size name (thumbnail, medium, large, full or custom size name), or an array of width and height values in pixels (in that order).
    return $size;
}
```

Source: [https://gist.github.com/wp-seopress/1b905de26415865d790c3c7a9fcb026c](https://gist.github.com/wp-seopress/1b905de26415865d790c3c7a9fcb026c)