1 files changed, 1 insertions, 0 deletions
diff --git a/utf8.h b/utf8.h
index 698c687c1c..e71264c35c 100644
--- a/utf8.h
+++ b/utf8.h
@@ -27,5 +27,6 @@ EXTCONST unsigned char PL_utf8skip[];
 END_EXTERN_C
 
 #define IN_UTF8 (PL_curcop->op_private & HINT_UTF8)
+#define IN_BYTE (PL_curcop->op_private & HINT_BYTE)
 
 #define UTF8SKIP(s) PL_utf8skip[*(U8*)s]