diff --git a/ChangeLog b/ChangeLog
index b58f21f7b0..dfee2eacd7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Oct  5 16:33:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_cfunc): remove useless hack.
+
 Wed Sep 21 11:17:22 2011  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* numeric.c (ruby_float_step): improve floating point calculations.
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index 420e67de05..7f38ccf7c1 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -406,10 +406,6 @@ vm_call_cfunc(rb_thread_t *th, rb_control_frame_t *reg_cfp,
     if (reg_cfp != th->cfp + 1) {
 	rb_bug("cfp consistency error - send");
     }
-#ifdef __llvm__
-#define RB_LLVM_GUARD(v) (*RB_GC_GUARD_PTR((volatile VALUE *)&(v)))
-    RB_LLVM_GUARD(reg_cfp);
-#endif
 
     vm_pop_frame(th);