diff --git a/api/@ohos.process.d.ts b/api/@ohos.process.d.ts
index 02b7e123eadc87d0134c66a73260165ee024263e..775f0974c27a1210a98f41720d78d9fc336b1521 100644
--- a/api/@ohos.process.d.ts
+++ b/api/@ohos.process.d.ts
@@ -263,7 +263,7 @@ declare namespace process {
     * @return Return a child process object.
     */
     function runCmd(command: string,
-        options?: { timeout : number, killSignal : number | string, maxBuffer : number }): ChildProcess;
+        options?: { timeout?: number, killSignal?: number | string, maxBuffer?: number }): ChildProcess;
 
     /**
     * Abort current process
diff --git a/api/@ohos.util.d.ts b/api/@ohos.util.d.ts
index f3f42ea249fa30585f6ce7c5218294bd8d5efef8..125df688a4493f91936f9fe7bc75b368441d2332 100644
--- a/api/@ohos.util.d.ts
+++ b/api/@ohos.util.d.ts
@@ -70,7 +70,7 @@ declare namespace util {
      * @since 9
      * @syscap SystemCapability.Utils.Lang
      * @param original asynchronous function
-     * @return return a version that returns promises
+     * @return return a function that returns promises
      */
      function promiseWrapper(original: (err: Object, value: Object) => void): Function;