diff --git a/ChangeLog b/ChangeLog
index 223e82b5a4..8717875538 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Dec  3 20:28:02 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_specialized_instruction):
+	  change condition of using `opt_send_simple'.
+	  More method invocations can be simple.
+
 Mon Dec  3 20:03:38 2012  Koichi Sasada  <ko1@atdot.net>
 
 	* test/ruby/test_objectspace.rb: skip RuntimeError
diff --git a/compile.c b/compile.c
index 5412beef7a..5d219af65e 100644
--- a/compile.c
+++ b/compile.c
@@ -1940,6 +1940,8 @@ iseq_specialized_instruction(rb_iseq_t *iseq, INSN *iobj)
 		}
 		break;
 	    }
+	}
+	if (ci->flag & VM_CALL_ARGS_SKIP_SETUP) {
 	    iobj->insn_id = BIN(opt_send_simple);
 	}
     }