diff --git a/src/uix/morfo/components/splitter.ts b/src/uix/morfo/components/splitter.ts
index edbf3f0eb..b35634b78 100644
--- a/src/uix/morfo/components/splitter.ts
+++ b/src/uix/morfo/components/splitter.ts
@@ -4,7 +4,16 @@ import { v } from '../types';
 export const splitterMorfo = {
 	name: 'Splitter',
 	kebab: 'splitter',
-	scope: ['soma'],
+	// Sema is in scope: the splitter's three-event drag shape ships a
+	// per-component cascade in `src/uix/sema/components/splitter.ts`
+	// (pickup sound on `handle-pick`, dynamic per-emit overrides on
+	// `handle-drag`, snap chime on `commit-set`). Without `'sema'`
+	// here the cascade rules would never load and `handle-*` events
+	// would fall through to the family base — which for `handle` has
+	// no `sound` slice, so drag would be silent. Eidos is in scope too
+	// since the components/splitter eidos wrappers reference the morfo
+	// in their CSS recipe (`data-event='commit-set'` pulse).
+	scope: ['soma', 'sema', 'eidos'],
 	texts: {
 		label: '#?components.splitter.label|Splitter',
 		resize: '#?components.splitter.resize|Resize panels'
diff --git a/web/routes/uix/+layout@.svelte b/web/routes/uix/+layout@.svelte
index 3722a50aa..eb1e4416f 100644
--- a/web/routes/uix/+layout@.svelte
+++ b/web/routes/uix/+layout@.svelte
@@ -18,6 +18,7 @@
 	import { searchFieldSema } from '$uix/sema/components/search-field';
 	import { selectSema } from '$uix/sema/components/select';
 	import { sliderSema } from '$uix/sema/components/slider';
+	import { splitterSema } from '$uix/sema/components/splitter';
 	import { stepperSema } from '$uix/sema/components/stepper';
 	import { tabsSema } from '$uix/sema/components/tabs';
 	import { tagGroupSema } from '$uix/sema/components/tag-group';
@@ -78,6 +79,7 @@
 				searchFieldSema,
 				selectSema,
 				sliderSema,
+				splitterSema,
 				stepperSema,
 				tabsSema,
 				tagGroupSema,