diff --git a/packages/vue-language-core/src/generators/script.ts b/packages/vue-language-core/src/generators/script.ts
index 1ccb5eded9..70cb65cdb1 100644
--- a/packages/vue-language-core/src/generators/script.ts
+++ b/packages/vue-language-core/src/generators/script.ts
@@ -671,9 +671,9 @@ declare function defineProp<T>(value?: T | (() => T), required?: boolean, rest?:
 			generateConstNameOption();
 
 			if (scriptSetupRanges?.slotsTypeArg && sfc.scriptSetup) {
-				codes.push(`var __VLS_slots!: __VLS_NormalizeSlots<`);
+				codes.push(`var __VLS_slots!: `);
 				addExtraReferenceVirtualCode('scriptSetup', scriptSetupRanges.slotsTypeArg.start, scriptSetupRanges.slotsTypeArg.end);
-				codes.push('>;\n');
+				codes.push(';\n');
 			};
 
 			codes.push(`function __VLS_template() {\n`);
diff --git a/packages/vue-language-core/src/generators/template.ts b/packages/vue-language-core/src/generators/template.ts
index 8c99c5c84a..2dd70cecb8 100644
--- a/packages/vue-language-core/src/generators/template.ts
+++ b/packages/vue-language-core/src/generators/template.ts
@@ -1596,6 +1596,7 @@ export function generate(
 
 		if (hasScriptSetupSlots) {
 			codes.push(
+				'__VLS_normalizeSlot(',
 				['', 'template', node.loc.start.offset, capabilitiesPresets.diagnosticOnly],
 				'__VLS_slots[',
 				['', 'template', node.loc.start.offset, capabilitiesPresets.diagnosticOnly],
@@ -1603,7 +1604,7 @@ export function generate(
 				['', 'template', node.loc.end.offset, capabilitiesPresets.diagnosticOnly],
 				']',
 				['', 'template', node.loc.end.offset, capabilitiesPresets.diagnosticOnly],
-				'?.(',
+				')?.(',
 				['', 'template', startTagOffset, capabilitiesPresets.diagnosticOnly],
 				'{\n',
 			);
diff --git a/packages/vue-language-core/src/utils/globalTypes.ts b/packages/vue-language-core/src/utils/globalTypes.ts
index e34ec08007..b307dfc726 100644
--- a/packages/vue-language-core/src/utils/globalTypes.ts
+++ b/packages/vue-language-core/src/utils/globalTypes.ts
@@ -110,10 +110,8 @@ declare function __VLS_pickFunctionalComponentCtx<T, K>(comp: T, compInstance: K
 	T extends (props: any, ctx: infer Ctx) => any ? Ctx : any
 >;
 type __VLS_AsFunctionOrAny<F> = unknown extends F ? any : ((...args: any) => any) extends F ? F : any;
-type __VLS_NormalizeSlots<T> = {
-	[K in keyof T]: T[K] extends () => infer R ? (arg: any) => R : T[K]
-}
 
+declare function __VLS_normalizeSlot<S>(s: S): S extends () => infer R ? (props: {}) => R : S;
 declare function __VLS_componentProps<T, K>(comp: T, fnReturn: K):
 	__VLS_PickNotAny<K, {}> extends { __ctx: { props: infer P } } ? NonNullable<P>
 	: T extends (props: infer P, ...args: any) => any ? NonNullable<P> :