diff --git a/docs/userGuide/components/advanced.md b/docs/userGuide/components/advanced.md
index 7843509881..8e9a248577 100644
--- a/docs/userGuide/components/advanced.md
+++ b/docs/userGuide/components/advanced.md
@@ -71,6 +71,55 @@ Using the normal syntax, you are only able to use markdown formatting on heading
+**Box Slot Options:**
+
+Slot name | Default class |
+--- | --- |
+icon | depends on box's `type` attribute |
+
+{{ icon_example }} Override the default icon for a certain type of box.
+
+```html
+
+ :fas-home:
+ info
+
+```
+
+
+ :fas-home:
+ info
+
+
+{{ icon_example }} Use pictures (or even gifs) as the icon for a box.
+
+```html
+
+ 
+ some very useful info
+
+```
+
+
+
+ some very useful info
+
+
+{{ icon_example }} Use [thumbnail]({{ baseUrl }}/userGuide/usingComponents.html#thumbnails) as the icon.
+
+
+```html
+
+
+ use thumbnail as the icon
+
+```
+
+
+
+ use thumbnail as the icon
+
+
**Panel Slot Options:**
Slot name | Default class | Notes
--- | --- | ---
diff --git a/src/lib/markbind/src/parsers/componentParser.js b/src/lib/markbind/src/parsers/componentParser.js
index c9ed5eead3..06331480ac 100644
--- a/src/lib/markbind/src/parsers/componentParser.js
+++ b/src/lib/markbind/src/parsers/componentParser.js
@@ -356,7 +356,7 @@ function _parseBoxAttributes(node) {
_warnConflictingAttributes(node, 'no-icon', ['icon']);
_warnDeprecatedAttributes(node, { heading: 'header' });
- _parseAttributeWithoutOverride(node, 'icon', true, '_icon');
+ _parseAttributeWithoutOverride(node, 'icon', true, 'icon');
_parseAttributeWithoutOverride(node, 'header', false, '_header');
_parseAttributeWithoutOverride(node, 'heading', false, '_header');
diff --git a/test/unit/utils/componentParserData.js b/test/unit/utils/componentParserData.js
index 966e55f415..96dd33bcaf 100644
--- a/test/unit/utils/componentParserData.js
+++ b/test/unit/utils/componentParserData.js
@@ -241,13 +241,13 @@ module.exports.PARSE_TAB_GROUP_HEADER_EXPECTED = `
module.exports.PARSE_BOX_ICON = `
- Icon attribute should be inserted as internal _icon slot and deleted.
+ Icon attribute should be inserted as internal icon slot and deleted.
`;
module.exports.PARSE_BOX_ICON_EXPECTED = `
-🚀
- Icon attribute should be inserted as internal _icon slot and deleted.
+🚀
+ Icon attribute should be inserted as internal icon slot and deleted.
`;