diff --git a/packages/runtime-core/src/apiAsyncComponent.ts b/packages/runtime-core/src/apiAsyncComponent.ts
index ab4ab51b6..f5ba7781a 100644
--- a/packages/runtime-core/src/apiAsyncComponent.ts
+++ b/packages/runtime-core/src/apiAsyncComponent.ts
@@ -43,7 +43,7 @@ export interface AsyncComponentOptions<T = any> {
 export const isAsyncWrapper = (i: ComponentInternalInstance | VNode): boolean =>
   !!(i.type as ComponentOptions).__asyncLoader
 
-/*! #__NO_SIDE_EFFECTS__ */
+/*@__NO_SIDE_EFFECTS__*/
 export function defineAsyncComponent<
   T extends Component = { new (): ComponentPublicInstance },
 >(source: AsyncComponentLoader<T> | AsyncComponentOptions<T>): T {
diff --git a/packages/runtime-core/src/apiDefineComponent.ts b/packages/runtime-core/src/apiDefineComponent.ts
index 2ce870f01..68155e831 100644
--- a/packages/runtime-core/src/apiDefineComponent.ts
+++ b/packages/runtime-core/src/apiDefineComponent.ts
@@ -301,7 +301,7 @@ export function defineComponent<
 >
 
 // implementation, close to no-op
-/*! #__NO_SIDE_EFFECTS__ */
+/*@__NO_SIDE_EFFECTS__*/
 export function defineComponent(
   options: unknown,
   extraOptions?: ComponentOptions,
diff --git a/packages/runtime-core/src/devtools.ts b/packages/runtime-core/src/devtools.ts
index 9ac4c433a..a904792a2 100644
--- a/packages/runtime-core/src/devtools.ts
+++ b/packages/runtime-core/src/devtools.ts
@@ -125,7 +125,7 @@ export const devtoolsComponentRemoved = (
 
 type DevtoolsComponentHook = (component: ComponentInternalInstance) => void
 
-/*! #__NO_SIDE_EFFECTS__ */
+/*@__NO_SIDE_EFFECTS__*/
 function createDevtoolsComponentHook(
   hook: DevtoolsHooks,
 ): DevtoolsComponentHook {
diff --git a/packages/runtime-dom/src/apiCustomElement.ts b/packages/runtime-dom/src/apiCustomElement.ts
index 0a1aa314e..d1f10777f 100644
--- a/packages/runtime-dom/src/apiCustomElement.ts
+++ b/packages/runtime-dom/src/apiCustomElement.ts
@@ -163,7 +163,7 @@ export function defineCustomElement<
   T extends DefineComponent<infer P, any, any, any> ? P : unknown
 >
 
-/*! #__NO_SIDE_EFFECTS__ */
+/*@__NO_SIDE_EFFECTS__*/
 export function defineCustomElement(
   options: any,
   extraOptions?: ComponentOptions,
@@ -184,7 +184,7 @@ export function defineCustomElement(
   return VueCustomElement
 }
 
-/*! #__NO_SIDE_EFFECTS__ */
+/*@__NO_SIDE_EFFECTS__*/
 export const defineSSRCustomElement = ((
   options: any,
   extraOptions?: ComponentOptions,
diff --git a/packages/shared/src/makeMap.ts b/packages/shared/src/makeMap.ts
index e85efe21e..d6bb2c35c 100644
--- a/packages/shared/src/makeMap.ts
+++ b/packages/shared/src/makeMap.ts
@@ -6,7 +6,7 @@
  * So that rollup can tree-shake them if necessary.
  */
 
-/*! #__NO_SIDE_EFFECTS__ */
+/*@__NO_SIDE_EFFECTS__*/
 export function makeMap(str: string): (key: string) => boolean {
   const map = Object.create(null)
   for (const key of str.split(',')) map[key] = 1