diff options
| -rw-r--r-- | contrib/isn/isn.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/contrib/isn/isn.c b/contrib/isn/isn.c index be9c5cecbdb..11247449799 100644 --- a/contrib/isn/isn.c +++ b/contrib/isn/isn.c @@ -827,7 +827,7 @@ string2ean(const char *str, bool errorOK, ean13 *result, case ISMN: strncpy(buf, "9790", 4); /* this isn't for sure yet, for now * ISMN it's only 9790 */ - valid = (valid && ((rcheck = checkdig(buf + 3, 10)) == check || magic)); + valid = (valid && ((rcheck = checkdig(buf, 13)) == check || magic)); break; case ISBN: strncpy(buf, "978", 3); |