@@ -122,11 +122,11 @@
 + (void)initialize
 {
 	if (self != [OFColor class])
 		return;
 
-	placeholder.isa = [OFColorPlaceholder class];
+	object_setClass((id)&placeholder, [OFColorPlaceholder class]);
 #ifdef OF_OBJFW_RUNTIME
 	colorTag =
 	    objc_registerTaggedPointerClass([OFTaggedPointerColor class]);
 #endif
 }