1 files changed, 4 insertions, 1 deletions
diff --git a/safe.c b/safe.c
index 2ebb9dae79..030b473ddd 100644
--- a/safe.c
+++ b/safe.c
@@ -16,13 +16,16 @@
    3 - all generated objects are tainted
 */
 
-#define SAFE_LEVEL_MAX 3
+#define SAFE_LEVEL_MAX RUBY_SAFE_LEVEL_MAX
 
 #include "ruby/ruby.h"
 #include "vm_core.h"
 
 /* $SAFE accessor */
 
+#undef rb_secure
+#undef rb_set_safe_level
+
 int
 rb_safe_level(void)
 {