diff --git a/docs/reference-guides/core-blocks.md b/docs/reference-guides/core-blocks.md
index 0715b1e3547e2a..cb7baebf519b87 100644
--- a/docs/reference-guides/core-blocks.md
+++ b/docs/reference-guides/core-blocks.md
@@ -255,7 +255,7 @@ Hide and show additional content. ([Source](https://github.com/WordPress/gutenbe
 -	**Name:** core/details
 -	**Category:** text
 -	**Supports:** align (full, wide), anchor, color (background, gradients, link, text), interactivity (clientNavigation), layout (~~allowEditing~~), spacing (blockGap, margin, padding), typography (fontSize, lineHeight), ~~html~~
--	**Attributes:** showContent, summary
+-	**Attributes:** allowedBlocks, showContent, summary
 
 ## Embed
 
diff --git a/packages/block-library/src/details/block.json b/packages/block-library/src/details/block.json
index 0cd0040cdde1b9..e28d94c03b9aa0 100644
--- a/packages/block-library/src/details/block.json
+++ b/packages/block-library/src/details/block.json
@@ -16,6 +16,9 @@
 			"type": "rich-text",
 			"source": "rich-text",
 			"selector": "summary"
+		},
+		"allowedBlocks": {
+			"type": "array"
 		}
 	},
 	"supports": {
diff --git a/packages/block-library/src/details/edit.js b/packages/block-library/src/details/edit.js
index 9bebdee1a76706..9cf6a7a8456121 100644
--- a/packages/block-library/src/details/edit.js
+++ b/packages/block-library/src/details/edit.js
@@ -31,11 +31,12 @@ const TEMPLATE = [
 ];
 
 function DetailsEdit( { attributes, setAttributes, clientId } ) {
-	const { showContent, summary } = attributes;
+	const { showContent, summary, allowedBlocks } = attributes;
 	const blockProps = useBlockProps();
 	const innerBlocksProps = useInnerBlocksProps( blockProps, {
 		template: TEMPLATE,
 		__experimentalCaptureToolbars: true,
+		allowedBlocks,
 	} );
 	const dropdownMenuProps = useToolsPanelDropdownMenuProps();