2 files changed, 5 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 7ef43ffd02..4d42709f0c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Nov 28 01:35:08 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* st.c (st_keys): fix to use st_index_t for size of hash.
+
 Thu Nov 28 00:36:52 2013  Masaki Matsushita  <glass.saga@gmail.com>
 
 	* st.c (st_keys): define st_keys(). it writes each key to buffer.
diff --git a/hash.c b/hash.c
index 4fc7b88668..f09b19af51 100644
--- a/hash.c
+++ b/hash.c
@@ -1703,7 +1703,7 @@ VALUE
 rb_hash_keys(VALUE hash)
 {
     VALUE keys;
-    int size = RHASH_SIZE(hash);
+    st_index_t size = RHASH_SIZE(hash);
 
     keys = rb_ary_new_capa(size);
     if (size == 0) return keys;