diff --git a/debian/changelog b/debian/changelog
index e7df9bc..dd230a2 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,7 @@ spark-store (4.2.3.2~Reason5) stable; urgency=medium
   * aptss 支持非root模式启动
   * aptss 添加transhell支持
   * 关于界面自动获取分支名称
+  * 现在安装成功则自动删除安装包
 
  -- shenmo <shenmo@spark-app.store>  
 spark-store (4.2.3.2~Reason3) stable; urgency=medium
diff --git a/src/widgets/common/downloaditem.cpp b/src/widgets/common/downloaditem.cpp
index 4b25a7a..c92daca 100644
--- a/src/widgets/common/downloaditem.cpp
+++ b/src/widgets/common/downloaditem.cpp
@@ -175,7 +175,7 @@ void DownloadItem::slotAsyncInstall(int t)
     switch(t)
     {
     case 0:
-        installer.start("pkexec", QStringList() << "ssinstall" << "/tmp/spark-store/" + ui->label_filename->text().toUtf8() + "--delete-after-install");
+        installer.start("pkexec", QStringList() << "ssinstall" << "/tmp/spark-store/" + ui->label_filename->text().toUtf8() + " " + "--delete-after-install");
         break;
     case 1:
         installer.start("deepin-deb-installer", QStringList() << "/tmp/spark-store/" + ui->label_filename->text().toUtf8());