diff --git a/ChangeLog b/ChangeLog
index ee7d69a04f..9ead0498ac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Oct 15 16:19:39 2014  Eric Wong  <e@80x24.org>
+
+	* array.c (ary_recycle_hash): add RB_GC_GUARD
+	  (rb_ary_diff): remove volatile
+	  [Bug #10369]
+
 Wed Oct 15 16:13:28 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* dir.c (dir_s_aref): fix rdoc.  `Dir.glob` allows an array but
diff --git a/array.c b/array.c
index 57999fbd97..54d3d763e0 100644
--- a/array.c
+++ b/array.c
@@ -3781,6 +3781,7 @@ ary_recycle_hash(VALUE hash)
 	RHASH(hash)->ntbl = 0;
 	st_free_table(tbl);
     }
+    RB_GC_GUARD(hash);
 }
 
 /*
@@ -3804,7 +3805,7 @@ static VALUE
 rb_ary_diff(VALUE ary1, VALUE ary2)
 {
     VALUE ary3;
-    volatile VALUE hash;
+    VALUE hash;
     long i;
 
     hash = ary_make_hash(to_ary(ary2));
diff --git a/version.h b/version.h
index 473eeb0ac4..b04f9832e3 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.0.0"
 #define RUBY_RELEASE_DATE "2014-10-15"
-#define RUBY_PATCHLEVEL 583
+#define RUBY_PATCHLEVEL 584
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 10