1 files changed, 2 insertions, 1 deletions

diff --git a/src/regex.c b/src/regex.c
index b97ee7943fd..4b011634ae1 100644
--- a/src/regex.c
+++ b/src/regex.c
@@ -2992,7 +2992,8 @@ regex_compile (pattern, size, syntax, bufp)
                           if (re_iswctype (btowc (ch), cc))
                             {
                               c = TRANSLATE (ch);
-                              SET_LIST_BIT (c);
+                              if (c < (1 << BYTEWIDTH))
+                                SET_LIST_BIT (c);
                             }
 
                         if (target_multibyte)