1 files changed, 1 insertions, 1 deletions
diff --git a/dfa.c b/dfa.c
index 2c5ce76c..ca8c3b15 100644
--- a/dfa.c
+++ b/dfa.c
@@ -1210,7 +1210,7 @@ parse_bracket_exp (void)
 
   if (dfa->multibyte)
     {
-      static charclass zeroclass;
+      static charclass const zeroclass;
       work_mbc->invert = invert;
       work_mbc->cset = equal (ccl, zeroclass) ? -1 : charclass_index (ccl);
       return MBCSET;