--- compiz-0.5.2/plugins/decoration.c~	2007-07-30 19:54:20.000000000 +0100
+++ compiz-0.5.2/plugins/decoration.c	2007-10-03 17:26:38.000000000 +0100
@@ -1129,7 +1129,8 @@
 
     switch (index) {
     case DECOR_DISPLAY_OPTION_COMMAND:
-	if (compSetStringOption (o, value))
+	compSetStringOption (o, value);
+	if (o->value.s)
 	{
 	    if (display->screens && *o->value.s != '\0')
 	    {