1 files changed, 2 insertions, 0 deletions
diff --git a/range.c b/range.c
index 45ba78dcf7..3b19a2b33e 100644
--- a/range.c
+++ b/range.c
@@ -896,6 +896,8 @@ range_alloc(VALUE klass)
 void
 Init_Range(void)
 {
+#undef rb_intern
+
     id_cmp = rb_intern("<=>");
     id_succ = rb_intern("succ");
     id_beg = rb_intern("begin");