diff --git a/ChangeLog b/ChangeLog
index 857ab90..7a472bc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sun Nov 16 20:20:08 2008  Minero Aoki  <aamine@loveruby.net>
+
+	* net/loveruby/cflat/compiler/DereferenceChecker.java: We do not
+	  need to check an OpAssignNode as operator, because this class only
+	  check references.
+
 Sun Nov 16 20:10:59 2008  Minero Aoki  <aamine@loveruby.net>
 
 	* net/loveruby/cflat/compiler/CodeGenerator.java (compileAST):
diff --git a/ToDo b/ToDo
index 98c28f1..4c76229 100644
--- a/ToDo
+++ b/ToDo
@@ -5,7 +5,6 @@
 * type handling
         * "extern char*[] sys_errlist" is array, not pointer
         * &puts should be typed as int(*)(char*)*, not int(*)(char*)**
-* check opassign semantic as operator
 * use enum for compiler mode.
 
 == Done
@@ -258,3 +257,4 @@
 - --readonly-plt
 - -fPIE, -pie
         - implement difference against PIC
+- check opassign semantic as operator
diff --git a/net/loveruby/cflat/compiler/DereferenceChecker.java b/net/loveruby/cflat/compiler/DereferenceChecker.java
index d6d21f9..9c2c74b 100644
--- a/net/loveruby/cflat/compiler/DereferenceChecker.java
+++ b/net/loveruby/cflat/compiler/DereferenceChecker.java
@@ -68,7 +68,6 @@ class DereferenceChecker extends Visitor {
     public void visit(OpAssignNode node) {
         super.visit(node);
         checkAssignment(node);
-        // FIXME: check as operator
     }
 
     protected void checkAssignment(AbstractAssignNode node) {