diff --git a/Plugins/Wox.Plugin.Program/AddProgramSource.xaml.cs b/Plugins/Wox.Plugin.Program/AddProgramSource.xaml.cs
index 045bcfb7fc..063e1166a6 100644
--- a/Plugins/Wox.Plugin.Program/AddProgramSource.xaml.cs
+++ b/Plugins/Wox.Plugin.Program/AddProgramSource.xaml.cs
@@ -9,12 +9,14 @@ namespace Wox.Plugin.Program
     /// </summary>
     public partial class AddProgramSource
     {
+        private PluginInitContext _context;
         private Settings.ProgramSource _editing;
         private Settings _settings;
 
-        public AddProgramSource(Settings settings)
+        public AddProgramSource(PluginInitContext context, Settings settings)
         {
             InitializeComponent();
+            _context = context;
             _settings = settings;
             Directory.Focus();
         }
@@ -40,7 +42,13 @@ namespace Wox.Plugin.Program
 
         private void ButtonAdd_OnClick(object sender, RoutedEventArgs e)
         {
-            if(_editing == null)
+            string s = Directory.Text;
+            if (!System.IO.Directory.Exists(s))
+            {
+                System.Windows.MessageBox.Show(_context.API.GetTranslation("wox_plugin_program_invalid_path"));
+                return;
+            }
+            if (_editing == null)
             {
                 var source = new Settings.ProgramSource
                 {
diff --git a/Plugins/Wox.Plugin.Program/Languages/en.xaml b/Plugins/Wox.Plugin.Program/Languages/en.xaml
index d693ca2f5c..bd75929412 100644
--- a/Plugins/Wox.Plugin.Program/Languages/en.xaml
+++ b/Plugins/Wox.Plugin.Program/Languages/en.xaml
@@ -35,4 +35,6 @@
     <system:String x:Key="wox_plugin_program_plugin_name">Program</system:String>
     <system:String x:Key="wox_plugin_program_plugin_description">Search programs in Wox</system:String>
 
+    <system:String x:Key="wox_plugin_program_invalid_path">Invalid Path</system:String>
+
 </ResourceDictionary>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Program/Languages/zh-cn.xaml b/Plugins/Wox.Plugin.Program/Languages/zh-cn.xaml
index 16e4639317..cce2b7ac89 100644
--- a/Plugins/Wox.Plugin.Program/Languages/zh-cn.xaml
+++ b/Plugins/Wox.Plugin.Program/Languages/zh-cn.xaml
@@ -35,4 +35,6 @@
     <system:String x:Key="wox_plugin_program_plugin_name">程序</system:String>
     <system:String x:Key="wox_plugin_program_plugin_description">在Wox中搜索程序</system:String>
 
+    <system:String x:Key="wox_plugin_program_invalid_path">无效路径</system:String>
+
 </ResourceDictionary>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Program/ProgramSetting.xaml.cs b/Plugins/Wox.Plugin.Program/ProgramSetting.xaml.cs
index 5bbb90e9a6..e6ad4106bf 100644
--- a/Plugins/Wox.Plugin.Program/ProgramSetting.xaml.cs
+++ b/Plugins/Wox.Plugin.Program/ProgramSetting.xaml.cs
@@ -42,7 +42,7 @@ namespace Wox.Plugin.Program
 
         private void btnAddProgramSource_OnClick(object sender, RoutedEventArgs e)
         {
-            var add = new AddProgramSource(_settings);
+            var add = new AddProgramSource(context, _settings);
             if(add.ShowDialog() ?? false)
             {
                 ReIndexing();