re.c: fix MatchData#hashmatchdata-hash-fix

Don't discard the result of rb_hash_uint() calculated for the Regexp.

1 files changed, 1 insertions, 1 deletions

diff --git a/re.c b/re.c
index 6574d9fcdf..cccfcc8b7b 100644
--- a/re.c
+++ b/re.c
@@ -2952,7 +2952,7 @@ match_hash(VALUE match)
 
     match_check(match);
     hashval = rb_hash_start(rb_str_hash(RMATCH(match)->str));
-    rb_hash_uint(hashval, reg_hash(RMATCH(match)->regexp));
+    hashval = rb_hash_uint(hashval, reg_hash(RMATCH(match)->regexp));
     regs = RMATCH_REGS(match);
     hashval = rb_hash_uint(hashval, regs->num_regs);
     hashval = rb_hash_uint(hashval, rb_memhash(regs->beg, regs->num_regs * sizeof(*regs->beg)));