diff --git a/ChangeLog b/ChangeLog
index 176a111293..a34dbbfe68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Oct 21 23:58:14 2010  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_lazy_sweep): Variable declarations should be at
+	  the head of block.
+
 Thu Oct 21 23:56:54 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* gc.c (objspace_each_objects, rb_objspace_each_objects): use
diff --git a/gc.c b/gc.c
index b2be6d2357..6641097558 100644
--- a/gc.c
+++ b/gc.c
@@ -2058,11 +2058,11 @@ static int
 gc_lazy_sweep(rb_objspace_t *objspace)
 {
     int res;
+    INIT_GC_PROF_PARAMS;
 
     if (objspace->flags.dont_lazy_sweep)
         return garbage_collect(objspace);
 
-    INIT_GC_PROF_PARAMS;
 
     if (!ready_to_gc(objspace)) return TRUE;