1 files changed, 4 insertions, 1 deletions
diff --git a/ruby.c b/ruby.c
index 40d9dbd23f..4f25fc49c1 100644
--- a/ruby.c
+++ b/ruby.c
@@ -1055,7 +1055,10 @@ ruby_set_argv(argc, argv)
 #endif
     rb_ary_clear(rb_argv);
     for (i=0; i < argc; i++) {
-	rb_ary_push(rb_argv, rb_tainted_str_new2(argv[i]));
+	VALUE arg = rb_tainted_str_new2(argv[i]);
+
+	OBJ_FREEZE(arg);
+	rb_ary_push(rb_argv, arg);
     }
 }