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-rw-r--r--src/regex/regcomp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/regex/regcomp.c b/src/regex/regcomp.c
index 3307942e..875f56fd 100644
--- a/src/regex/regcomp.c
+++ b/src/regex/regcomp.c
@@ -3115,7 +3115,7 @@ tre_compile(regex_t *preg, const tre_char_t *regex, size_t n, int cflags)
errcode = tre_parse(&parse_ctx);
if (errcode != REG_OK)
ERROR_EXIT(errcode);
- preg->re_nsub = parse_ctx.submatch_id - 1;
+ preg->re_nsub = preg->__nsub2 = parse_ctx.submatch_id - 1;
tree = parse_ctx.result;
#ifdef TRE_DEBUG