1 files changed, 1 insertions, 0 deletions
diff --git a/id.c b/id.c
index c34f0c8dd9..57c965aff0 100644
--- a/id.c
+++ b/id.c
@@ -17,6 +17,7 @@ static void
 Init_id(void)
 {
 #undef rb_intern
+#define rb_intern(str) rb_intern_const(str)
 #define rb_intern(str) rb_intern2(str, strlen(str))
     rb_encoding *enc = rb_usascii_encoding();