--- ./src/wmgeneral.c.00	2001-12-02 13:39:16.000000000 +0100
+++ ./src/wmgeneral.c	2008-03-13 23:20:44.000000000 +0100
@@ -306,7 +306,7 @@
 	/* Activate hints */
 	XSetWMNormalHints(display, win, &mysizehints);
 	classHint.res_name = wname;
-	classHint.res_class = wname;
+	classHint.res_class = "DockApp";
 	XSetClassHint(display, win, &classHint);
 
 	XSelectInput(display, win, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask);