diff --git a/ChangeLog b/ChangeLog
index a05d5a0be7..606b7be808 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Feb 7 05:28:38 2014  Eric Wong  <e@80x24.org>
+
+	* constant.h: reduce rb_const_entry_t size on 64-bit
+	  Patch by Adam Avilla [ruby-core:60542] [Feature #9496]
+
 Thu Feb  6 15:27:46 2014  Koichi Sasada  <ko1@atdot.net>
 
 	* gc.c (get_envparam_int): correct warning messages.
diff --git a/constant.h b/constant.h
index 3dc9b8d4ef..153654604b 100644
--- a/constant.h
+++ b/constant.h
@@ -18,9 +18,9 @@ typedef enum {
 
 typedef struct rb_const_entry_struct {
     rb_const_flag_t flag;
+    int line;
     const VALUE value;            /* should be mark */
     const VALUE file;             /* should be mark */
-    int line;
 } rb_const_entry_t;
 
 VALUE rb_mod_private_constant(int argc, VALUE *argv, VALUE obj);