diff options
| -rw-r--r-- | variable.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/variable.c b/variable.c index 1395f5d625..68235ab86d 100644 --- a/variable.c +++ b/variable.c @@ -163,8 +163,9 @@ classname(VALUE klass, int *permanent) if (!st_lookup(RCLASS_IV_TBL(klass), (st_data_t)classpath, &n)) { ID cid = 0; if (st_lookup(RCLASS_IV_TBL(klass), (st_data_t)classid, &n)) { - cid = SYM2ID(n); - path = find_class_path(klass, cid); + VALUE cname = (VALUE)n; + cid = rb_check_id(&cname); + if (cid) path = find_class_path(klass, cid); } if (NIL_P(path)) { path = find_class_path(klass, (ID)0); |