diff --git a/ChangeLog b/ChangeLog
index a262869758..41c6079b22 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Tue Oct 18 23:28:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (identhash): share with type_numhash.
+
+	* st.c (st_hashtype_num): rename from type_numhash.
+
 Tue Oct 18 23:07:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_core.h (ruby_current_thread): probeprofiler has been removed
diff --git a/hash.c b/hash.c
index a3a4d787c6..e61f70393c 100644
--- a/hash.c
+++ b/hash.c
@@ -106,10 +106,8 @@ static const struct st_hash_type objhash = {
     rb_any_hash,
 };
 
-static const struct st_hash_type identhash = {
-    st_numcmp,
-    st_numhash,
-};
+extern const struct st_hash_type st_hashtype_num;
+#define identhash st_hashtype_num
 
 typedef int st_foreach_func(st_data_t, st_data_t, st_data_t);
 
diff --git a/st.c b/st.c
index 8394cc6b72..0186667ef1 100644
--- a/st.c
+++ b/st.c
@@ -38,7 +38,8 @@ struct st_table_entry {
      *
      */
 
-static const struct st_hash_type type_numhash = {
+#define type_numhash st_hashtype_num
+const struct st_hash_type st_hashtype_num = {
     st_numcmp,
     st_numhash,
 };