1 files changed, 1 insertions, 1 deletions

diff --git a/src/lj_obj.h b/src/lj_obj.h
index 85d904f3..ecce03ed 100644
--- a/src/lj_obj.h
+++ b/src/lj_obj.h
@@ -397,7 +397,7 @@ typedef struct GCupval {
     };
   };
   MRef v;               /* Points to stack slot (open) or above (closed). */
-  int32_t unusedv;      /* For consistent alignment. */
+  uint32_t dhash;       /* Disambiguation hash: dh1 != dh2 => cannot alias. */
 } GCupval;
 
 #define uvprev(uv_)     (&gcref((uv_)->prev)->uv)