diff --git a/.changeset/long-snails-complain.md b/.changeset/long-snails-complain.md
new file mode 100644
index 000000000..64224fa41
--- /dev/null
+++ b/.changeset/long-snails-complain.md
@@ -0,0 +1,5 @@
+---
+'@lion/overlays': patch
+---
+
+Fix check for css typed object support
diff --git a/packages/overlays/src/OverlayController.js b/packages/overlays/src/OverlayController.js
index 7e0f54eaa..837816b5c 100644
--- a/packages/overlays/src/OverlayController.js
+++ b/packages/overlays/src/OverlayController.js
@@ -24,7 +24,7 @@ async function preloadPopper() {
 const GLOBAL_OVERLAYS_CONTAINER_CLASS = 'global-overlays__overlay-container';
 const GLOBAL_OVERLAYS_CLASS = 'global-overlays__overlay';
 // @ts-expect-error [external]: CSS not yet typed
-const supportsCSSTypedObject = window.CSS && CSS.number;
+const supportsCSSTypedObject = window.CSS?.number && document.body.attributeStyleMap?.set;
 
 /**
  * @desc OverlayController is the fundament for every single type of overlay. With the right