ext/json/ext/parser/parser.rl in json_pure-2.3.0 vs ext/json/ext/parser/parser.rl in json_pure-2.3.1

@@ -136,9 +136,10 @@
         char *np = JSON_parse_value(json, fpc, pe, &v, current_nesting);
         if (np == NULL) {
             fhold; fbreak;
         } else {
             if (NIL_P(json->object_class)) {
+                OBJ_FREEZE(last_name);
                 rb_hash_aset(*result, last_name, v);
             } else {
                 rb_funcall(*result, i_aset, 2, last_name, v);
             }
             fexec np;