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-rw-r--r--ext/mbstring/oniguruma/src/regcomp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/mbstring/oniguruma/src/regcomp.c b/ext/mbstring/oniguruma/src/regcomp.c
index 4f68af2345..69d4b95f95 100644
--- a/ext/mbstring/oniguruma/src/regcomp.c
+++ b/ext/mbstring/oniguruma/src/regcomp.c
@@ -5603,7 +5603,7 @@ concat_opt_exact_str(OptStr* to, UChar* s, UChar* end, OnigEncoding enc)
for (i = to->len, p = s; p < end && i < OPT_EXACT_MAXLEN; ) {
len = enclen(enc, p);
- if (i + len >= OPT_EXACT_MAXLEN) break;
+ if (i + len > OPT_EXACT_MAXLEN) break;
for (j = 0; j < len && p < end; j++)
to->s[i++] = *p++;
}