diff --git a/api/arkui/stateManagement/storage/environment.d.ets b/api/arkui/stateManagement/storage/environment.d.ets
index adec7aeb40632d087e89c91918bb53dda755e359..0a5fef29db487987febeda98bcdcffeb6f685127 100644
--- a/api/arkui/stateManagement/storage/environment.d.ets
+++ b/api/arkui/stateManagement/storage/environment.d.ets
@@ -67,7 +67,7 @@ export declare class Environment {
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @since 20
    */
-  static envProp<S>(key: string, value: T): boolean;
+  static envProp<T>(key: string, value: T): boolean;
 
   /**
    * Called when multiple property values are added to Environment.