1 files changed, 1 insertions, 1 deletions
diff --git a/iseq.c b/iseq.c
index 3ae92e8555..037df44d2c 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1508,7 +1508,7 @@ static VALUE
 iseq_s_of(VALUE klass, VALUE body)
 {
     VALUE ret = Qnil;
-    rb_iseq_t *iseq;
+    const rb_iseq_t *iseq;
 
     rb_secure(1);