diff --git a/packages/vue-language-core/src/generators/template.ts b/packages/vue-language-core/src/generators/template.ts
index 95053703a9..76cfe585fc 100644
--- a/packages/vue-language-core/src/generators/template.ts
+++ b/packages/vue-language-core/src/generators/template.ts
@@ -1508,7 +1508,9 @@ export function generate(
 				['', 'template', node.loc.end.offset, capabilitiesPresets.diagnosticOnly],
 				']',
 				['', 'template', node.loc.end.offset, capabilitiesPresets.diagnosticOnly],
-				'?.({\n',
+				'?.(',
+				['', 'template', startTagOffset, capabilitiesPresets.diagnosticOnly],
+				'{\n',
 			);
 		}
 		else {
@@ -1587,7 +1589,11 @@ export function generate(
 				);
 			}
 		}
-		codes.push(hasScriptSetupSlots ? `});\n` : `};\n`);
+		codes.push(
+			'}',
+			hasScriptSetupSlots ? ['', 'template', startTagOffset + node.tag.length, capabilitiesPresets.diagnosticOnly] : '',
+			hasScriptSetupSlots ? `);\n` : `;\n`
+		);
 
 		if (hasScriptSetupSlots) {
 			return;
diff --git a/packages/vue-test-workspace/vue-tsc/#2726/main.vue b/packages/vue-test-workspace/vue-tsc/#2726/main.vue
index dd56d11c02..5117ec08be 100644
--- a/packages/vue-test-workspace/vue-tsc/#2726/main.vue
+++ b/packages/vue-test-workspace/vue-tsc/#2726/main.vue
@@ -8,11 +8,11 @@ const foo = ref('bar');
 defineSlots<{
 	default: {
 		foo: string;
-		buz: number;
+		buz?: number;
 	};
 }>();
 </script>
 
 <template>
-	<slot v-bind="{ foo }" />
+	<slot v-bind="{ foo: foo }" />
 </template>