diff --git a/platform.d b/platform.d
index 0e1b6fc..b5e1021 100644
--- a/platform.d
+++ b/platform.d
@@ -730,6 +730,10 @@ CreateWindow(PlatformWindow* window, string name, u32 width, u32 height, XVisual
 
 	XSetWMProtocols(window.display, window.window, window.atoms.ptr, window.atoms.length);
 
+	window.selections[CBM.Clipboard].xmode = window.atoms[Atoms.Clipboard];
+	window.selections[CBM.Primary].xmode   = XA_PRIMARY;
+	window.selections[CBM.Secondary].xmode = XA_SECONDARY;
+
 	XChangeProperty(
 		window.display,
 		window.window,