1 files changed, 2 insertions, 0 deletions
diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index b28a6fc..5cee27d 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -1649,9 +1649,11 @@ static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
     GET_PARSER_INIT;
     init_count += 1;
 
+#ifndef MAGLEV
     if (json->Vsource) {
         rb_raise(rb_eTypeError, "already initialized instance");
     }
+#endif
     rb_scan_args(argc, argv, "11", &source, &opts);
     source = convert_encoding(StringValue(source));
     ptr = RSTRING_PTR(source);