diff --git a/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/credential_database/CredentialDatabaseHandler.ets b/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/credential_database/CredentialDatabaseHandler.ets
index 9e6d75e5d11c141d34313dcf2b349d415ec2371b..8829d6549ccc1d3af2fb90e86b3f565ed9fd87da 100644
--- a/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/credential_database/CredentialDatabaseHandler.ets
+++ b/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/credential_database/CredentialDatabaseHandler.ets
@@ -123,7 +123,7 @@ export default class CredentialDatabaseHandler extends ChannelDelegateImpl {
       let protectionSpaces = await this.credentialDatabase!.protectionSpaceDao.getAll();
       protectionSpaces.forEach(async (item) => {
         let credentials: List<Map<string, Any>> = new List<Map<string, Any>>();
-        let URLCredentials = await this.credentialDatabase!.credentialDao.getAllByProtectionSpaceId(item.getId())
+        let URLCredentials = await this.credentialDatabase!.credentialDao.getAllByProtectionSpaceId(item.getId()!)
         URLCredentials.forEach(credential => {
           credentials.add(credential.toMap());
         })