diff --git a/src/modules/launcher/Wox.Plugin/EventHandler.cs b/src/modules/launcher/Wox.Plugin/EventHandler.cs
index 4c1fb0f4c7..9509a9f4ec 100644
--- a/src/modules/launcher/Wox.Plugin/EventHandler.cs
+++ b/src/modules/launcher/Wox.Plugin/EventHandler.cs
@@ -25,6 +25,6 @@ namespace Wox.Plugin
 
     public class WoxQueryEventArgs
     {
-        public Query Query { get; set; }
+        internal Query Query { get; set; }
     }
 }