diff --git a/ChangeLog b/ChangeLog
index f0f5fd8798..1b4dd8f2c1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun May  9 00:27:46 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_thread_aset): fixed argument type.
+
 Sat May  8 23:09:44 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* NEWS (io/console): IO#noecho and IO#raw without block are
diff --git a/thread.c b/thread.c
index 668e698cea..8fc02ec534 100644
--- a/thread.c
+++ b/thread.c
@@ -2052,7 +2052,7 @@ rb_thread_local_aset(VALUE thread, ID id, VALUE val)
  */
 
 static VALUE
-rb_thread_aset(VALUE self, ID id, VALUE val)
+rb_thread_aset(VALUE self, VALUE id, VALUE val)
 {
     return rb_thread_local_aset(self, rb_to_id(id), val);
 }
diff --git a/version.h b/version.h
index d3edc1f76a..0aa57afb1e 100644
--- a/version.h
+++ b/version.h
@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.3"
-#define RUBY_RELEASE_DATE "2010-05-08"
+#define RUBY_RELEASE_DATE "2010-05-09"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"
 
@@ -8,7 +8,7 @@
 #define RUBY_VERSION_TEENY 1
 #define RUBY_RELEASE_YEAR 2010
 #define RUBY_RELEASE_MONTH 5
-#define RUBY_RELEASE_DAY 8
+#define RUBY_RELEASE_DAY 9
 
 #include "ruby/version.h"