diff --git a/Wox/Helper/DWMDropShadow.cs b/Wox/Helper/DWMDropShadow.cs
index 29191bff9d..b50dff4b64 100644
--- a/Wox/Helper/DWMDropShadow.cs
+++ b/Wox/Helper/DWMDropShadow.cs
@@ -56,7 +56,7 @@ namespace Wox.Helper
                 
                 if (ret1 == 0)
                 {
-                    Margins m = new Margins { Bottom = 0, Left = 0, Right = 1, Top = 1 };
+                    Margins m = new Margins { Bottom = 0, Left = 0, Right = 0, Top = 0 };
                     int ret2 = DwmExtendFrameIntoClientArea(helper.Handle, ref m);
                     return ret2 == 0;
                 }