diff --git a/src/uix/morfo/components/number-field.ts b/src/uix/morfo/components/number-field.ts
index 037cb6f45..57dae2ed2 100644
--- a/src/uix/morfo/components/number-field.ts
+++ b/src/uix/morfo/components/number-field.ts
@@ -15,12 +15,12 @@ export const numberFieldMorfo = {
 			defaultElement: 'div',
 			optional: false,
 			data: [
-				{ attr: 'data-disabled', severity: 'optional' },
-				{ attr: 'data-readonly', severity: 'optional' },
-				{ attr: 'data-required', severity: 'optional' },
-				{ attr: 'data-invalid', severity: 'optional' },
-				{ attr: 'data-focused', severity: 'optional' },
-				{ attr: 'data-scrubbing', severity: 'optional' }
+				{ attr: 'data-disabled', value: v.propRef('disabled'), severity: 'optional' },
+				{ attr: 'data-readonly', value: v.propRef('readonly'), severity: 'optional' },
+				{ attr: 'data-required', value: v.propRef('required'), severity: 'optional' },
+				{ attr: 'data-invalid', value: v.propRef('invalid'), severity: 'optional' },
+				{ attr: 'data-focused', value: v.propRef('focused'), severity: 'optional' },
+				{ attr: 'data-scrubbing', value: v.propRef('scrubbing'), severity: 'optional' }
 			],
 			aria: []
 		},
diff --git a/src/uix/soma/components/number-field/number-field-provider.svelte.ts b/src/uix/soma/components/number-field/number-field-provider.svelte.ts
index 0897c0443..eb329570f 100644
--- a/src/uix/soma/components/number-field/number-field-provider.svelte.ts
+++ b/src/uix/soma/components/number-field/number-field-provider.svelte.ts
@@ -117,12 +117,22 @@ export class NumberFieldProvider {
 	private constructor(opts: NumberFieldOpts) {
 		this.opts = opts;
 		this.soma = Soma.require();
-		this.runtime = this.soma.runtime(numberFieldMorfo, {});
+		this.runtime = this.soma.runtime(numberFieldMorfo, {
+			props: {
+				disabled: () => this.isDisabled,
+				readonly: () => this.isReadonly,
+				required: () => this.isRequired,
+				invalid: () => this.isInvalid,
+				focused: () => this.focused,
+				scrubbing: () => this.scrubbing
+			}
+		});
 		this.runtimePart = this.runtime.part('provider', {
 			id: opts.id,
 			ref: opts.ref,
 			owner: this,
-			context: NumberFieldProvider.ctx
+			context: NumberFieldProvider.ctx,
+			syncAttrs: true
 		});
 
 		this.locale = readableActive(() => opts.locale.current ?? this.soma.langs.getLocale() ?? 'en');
@@ -424,13 +434,7 @@ export class NumberFieldProvider {
 	readonly props = $derived.by(() =>
 		this.runtimePart.assert({
 			...this.runtimePart.props,
-			dir: this.opts.dir.current,
-			'data-disabled': boolToEmptyStrOrUndef(this.isDisabled),
-			'data-readonly': boolToEmptyStrOrUndef(this.isReadonly),
-			'data-required': boolToEmptyStrOrUndef(this.isRequired),
-			'data-invalid': boolToEmptyStrOrUndef(this.isInvalid),
-			'data-focused': boolToEmptyStrOrUndef(this.focused),
-			'data-scrubbing': boolToEmptyStrOrUndef(this.scrubbing)
+			dir: this.opts.dir.current
 		} as const)
 	);
 }