diff --git a/ChangeLog b/ChangeLog
index 3b1a429..e99ae3b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon May 18 03:50:55 2009  Minero Aoki  <aamine@loveruby.net>
+
+	* net/loveruby/cflat/sysdep/x86/CodeGenerator.java (optimize):
+	  wrongly did not optimize asm code.
+
 Mon May 18 03:29:59 2009  Minero Aoki  <aamine@loveruby.net>
 
 	* net/loveruby/cflat/compiler/TypeResolver.java: move x[] -> x*
diff --git a/net/loveruby/cflat/sysdep/x86/CodeGenerator.java b/net/loveruby/cflat/sysdep/x86/CodeGenerator.java
index 0ba6043..cefb6ad 100644
--- a/net/loveruby/cflat/sysdep/x86/CodeGenerator.java
+++ b/net/loveruby/cflat/sysdep/x86/CodeGenerator.java
@@ -414,7 +414,7 @@ public class CodeGenerator
         if (options.optimizeLevel() < 1) {
             return asms;
         }
-        return new PeepholeOptimizer().optimize(asms);
+        return PeepholeOptimizer.defaultSet().optimize(asms);
     }
     // #@@}