diff --git a/ChangeLog b/ChangeLog
index 64b53c2237..c3a5ff9ab3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Jun  4 05:13:34 2015  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (def_iseq_ptr): `iseqval' is not available any more.
+
 Thu Jun  4 04:50:12 2015  Koichi Sasada  <ko1@atdot.net>
 
 	* class.c (method_entry_i): mtbl should not have `me' as NULL.
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index 3482f96b2e..be244fcb13 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -1326,9 +1326,7 @@ static rb_iseq_t *
 def_iseq_ptr(rb_method_definition_t *def)
 {
 #if VM_CHECK_MODE > 0
-    rb_iseq_t *iseq;
     if (def->type != VM_METHOD_TYPE_ISEQ) rb_bug("def_iseq_ptr: not iseq (%d)", def->type);
-    GetISeqPtr(def->body.iseq.iseqval, iseq);
     if (def->body.iseq.iseqptr != iseq) rb_bug("def_iseq_ptr: ???.");
 #endif
     return def->body.iseq.iseqptr;