1 files changed, 1 insertions, 1 deletions
diff --git a/regexec.c b/regexec.c
index be4b362349..a2c0c72f73 100644
--- a/regexec.c
+++ b/regexec.c
@@ -1013,7 +1013,7 @@ S_find_byclass(pTHX_ regexp * prog, regnode *c, char *s, char *strend, char *sta
 	    c1 = *(U8*)m;
 	    c2 = PL_fold_locale[c1];
 	  do_exactf:
-	    e = do_utf8 ? s + ln : strend - ln;
+	    e = HOP3c(strend, -ln, s);
 
 	    if (norun && e < s)
 		e = s;			/* Due to minlen logic of intuit() */