diff --git a/packages/language-core/lib/plugins/vue-template-inline-ts.ts b/packages/language-core/lib/plugins/vue-template-inline-ts.ts
index 0501f8884e..e8680686fb 100644
--- a/packages/language-core/lib/plugins/vue-template-inline-ts.ts
+++ b/packages/language-core/lib/plugins/vue-template-inline-ts.ts
@@ -93,14 +93,23 @@ const plugin: VueLanguagePlugin = ctx => {
 						&& prop.exp.constType !== CompilerDOM.ConstantTypes.CAN_STRINGIFY // style='z-index: 2' will compile to {'z-index':'2'}
 					) {
 						if (prop.name === 'on') {
-							const ast = createTsAst(ctx.modules.typescript, prop.exp, prop.exp.content);
-							addFormatCodes(
-								prop.exp.content,
-								prop.exp.loc.start.offset,
-								isCompoundExpression(ctx.modules.typescript, ast)
-									? formatBrackets.event
-									: formatBrackets.normal,
-							);
+							if (prop.arg?.type === CompilerDOM.NodeTypes.SIMPLE_EXPRESSION) {
+								const ast = createTsAst(ctx.modules.typescript, prop.exp, prop.exp.content);
+								addFormatCodes(
+									prop.exp.content,
+									prop.exp.loc.start.offset,
+									isCompoundExpression(ctx.modules.typescript, ast)
+										? formatBrackets.event
+										: formatBrackets.normal,
+								);
+							}
+							else {
+								addFormatCodes(
+									prop.exp.content,
+									prop.exp.loc.start.offset,
+									formatBrackets.normal,
+								);
+							}
 						}
 						else {
 							addFormatCodes(
diff --git a/packages/language-service/tests/format/4333.spec.ts b/packages/language-service/tests/format/4333.spec.ts
new file mode 100644
index 0000000000..03b8a21eb1
--- /dev/null
+++ b/packages/language-service/tests/format/4333.spec.ts
@@ -0,0 +1,14 @@
+import { defineFormatTest } from '../utils/format';
+
+defineFormatTest({
+	title: '#' + __filename.split('.')[0],
+	languageId: 'vue',
+	input: `
+<template>
+	<div v-on="{ click: onItemInteraction, keydown: onItemInteraction }"></div>
+</template>
+	`.trim(),
+	settings: {
+		'typescript.format.semicolons': 'insert',
+	}
+});