1 files changed, 2 insertions, 2 deletions
diff --git a/io.c b/io.c
index 3c2a0a46c4..29b3f525bb 100644
--- a/io.c
+++ b/io.c
@@ -12413,10 +12413,10 @@ Init_IO(void)
     rb_output_fs = Qnil;
     rb_define_hooked_variable("$,", &rb_output_fs, 0, rb_str_setter);
 
-    rb_rs = rb_default_rs = rb_usascii_str_new2("\n");
+    rb_default_rs = rb_fstring_cstr("\n"); /* avoid modifying RS_default */
     rb_gc_register_mark_object(rb_default_rs);
+    rb_rs = rb_default_rs;
     rb_output_rs = Qnil;
-    OBJ_FREEZE(rb_default_rs);	/* avoid modifying RS_default */
     rb_define_hooked_variable("$/", &rb_rs, 0, rb_str_setter);
     rb_define_hooked_variable("$-0", &rb_rs, 0, rb_str_setter);
     rb_define_hooked_variable("$\\", &rb_output_rs, 0, rb_str_setter);