diff -Naur wmsystray-0.1.1.orig/wmsystray/systray.c wmsystray-0.1.1/wmsystray/systray.c
--- wmsystray-0.1.1.orig/wmsystray/systray.c	2004-03-01 04:54:50.000000000 +0100
+++ wmsystray-0.1.1/wmsystray/systray.c	2020-12-03 11:30:36.661776579 +0100
@@ -338,7 +338,7 @@
 		XReparentWindow (main_disp, embed_wind,
 				DefaultRootWindow(main_disp), 0, 0);
 		TRACE((stderr, "REJECTED!\n"));
-		return;
+		return 1;
 	}
 
 	XSelectInput (main_disp, embed_wind, StructureNotifyMask |