diff --git a/reactos/include/reactos/wine/rbtree.h b/reactos/include/reactos/wine/rbtree.h
index 13452d9e458..71437c41483 100644
--- a/reactos/include/reactos/wine/rbtree.h
+++ b/reactos/include/reactos/wine/rbtree.h
@@ -23,7 +23,7 @@
 #define __WINE_WINE_RBTREE_H
 
 #define WINE_RB_ENTRY_VALUE(element, type, field) \
-    ((type *)((char *)(element) - offsetof(type, field)))
+    ((type *)((char *)(element) - FIELD_OFFSET(type, field)))
 
 struct wine_rb_entry
 {