diff --git a/AppKit/buddy.h b/AppKit/buddy.h
index 0ff78fa..ae1fc39 100644
--- a/AppKit/buddy.h
+++ b/AppKit/buddy.h
@@ -16,7 +16,7 @@ typedef struct buddy_block_t{
 typedef struct buddy_t{
     buddy_block_t* head;
     buddy_block_t* tail;
-    int alignment;
+    os_size_t alignment;
 }buddy_t;
 
 /* ------------------------------------------------------------------------------------------------------------------ */