diff --git a/docs/reference-guides/core-blocks.md b/docs/reference-guides/core-blocks.md
index 4db90e9b2f8142..a27de8211c824a 100644
--- a/docs/reference-guides/core-blocks.md
+++ b/docs/reference-guides/core-blocks.md
@@ -254,7 +254,7 @@ Hide and show additional content. ([Source](https://github.com/WordPress/gutenbe
 
 -	**Name:** core/details
 -	**Category:** text
--	**Supports:** align (full, wide), color (background, gradients, link, text), interactivity (clientNavigation), layout (~~allowEditing~~), spacing (blockGap, margin, padding), typography (fontSize, lineHeight), ~~html~~
+-	**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
 
 ## Embed
diff --git a/packages/block-library/src/details/block.json b/packages/block-library/src/details/block.json
index a488ae1fa73a79..0cd0040cdde1b9 100644
--- a/packages/block-library/src/details/block.json
+++ b/packages/block-library/src/details/block.json
@@ -21,6 +21,7 @@
 	"supports": {
 		"__experimentalOnEnter": true,
 		"align": [ "wide", "full" ],
+		"anchor": true,
 		"color": {
 			"gradients": true,
 			"link": true,