diff --git a/Wox/MainWindow.xaml.cs b/Wox/MainWindow.xaml.cs
index 04f29a60b..ee3044e4b 100644
--- a/Wox/MainWindow.xaml.cs
+++ b/Wox/MainWindow.xaml.cs
@@ -480,8 +480,11 @@ namespace Wox
         private void Query(string text)
         {
             var query = PluginManager.QueryInit(text);
-            lastQuery = query?.RawQuery;
-            PluginManager.QueryForAllPlugins(query);
+            if (query != null)
+            {
+                lastQuery = query.RawQuery;
+                PluginManager.QueryForAllPlugins(query);
+            }
             StopProgress();
         }