diff --git a/ChangeLog b/ChangeLog
index 57a7ddbf04..1843641deb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Mar 24 11:36:55 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/ossl_x509name.c: id_aref's type is ID.
+
 Thu Mar 24 10:04:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* ext/io/console/console.c (console_set_winsize):
diff --git a/ext/openssl/ossl_x509name.c b/ext/openssl/ossl_x509name.c
index df533e88b2..a9a9412266 100644
--- a/ext/openssl/ossl_x509name.c
+++ b/ext/openssl/ossl_x509name.c
@@ -87,7 +87,7 @@ ossl_x509name_alloc(VALUE klass)
     return obj;
 }
 
-static int id_aref;
+static ID id_aref;
 static VALUE ossl_x509name_add_entry(int, VALUE*, VALUE);
 #define rb_aref(obj, key) rb_funcall((obj), id_aref, 1, (key))