1 files changed, 2 insertions, 1 deletions
diff --git a/vm_core.h b/vm_core.h
index 8d0a6fc150..5bd9f6c6d0 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -756,7 +756,8 @@ enum vm_special_object_type {
 #define VM_FRAME_MAGIC_IFUNC  0x81
 #define VM_FRAME_MAGIC_EVAL   0x91
 #define VM_FRAME_MAGIC_LAMBDA 0xa1
-#define VM_FRAME_MAGIC_MASK_BITS   8
+#define VM_FRAME_MAGIC_RESCUE 0xb1
+#define VM_FRAME_MAGIC_MASK_BITS 8
 #define VM_FRAME_MAGIC_MASK   (~(~0<<VM_FRAME_MAGIC_MASK_BITS))
 
 #define VM_FRAME_TYPE(cfp) ((cfp)->flag & VM_FRAME_MAGIC_MASK)