diff --git a/ChangeLog b/ChangeLog
index ce8cb50740..96cb2f7858 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Nov  9 20:32:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/objspace/test_objspace.rb (test_dump_all): Make the test string
+	  shorter to be an embedded string on 32bit environment as well as
+	  64bit environment.
+
 Sat Nov  9 15:00:16 2013  Zachary Scott  <e@zzak.io>
 
 	* io.c: [DOC] ARGF.gets may return nil [Bug #9029] patch by znz
diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
index aec4572044..f7f507896e 100644
--- a/test/objspace/test_objspace.rb
+++ b/test/objspace/test_objspace.rb
@@ -218,12 +218,12 @@ class TestObjSpace < Test::Unit::TestCase
   end
 
   def test_dump_all
-    entry = /"value":"this is a test string", "encoding":"UTF-8", "file":"-", "line":4, "method":"dump_my_heap_please"/
+    entry = /"value":"TEST STRING", "encoding":"UTF-8", "file":"-", "line":4, "method":"dump_my_heap_please"/
     assert_in_out_err(%w[-robjspace], <<-'end;', entry)
       def dump_my_heap_please
         ObjectSpace.trace_object_allocations_start
         GC.start
-        "this is a test string".force_encoding("UTF-8")
+        "TEST STRING".force_encoding("UTF-8")
         ObjectSpace.dump_all(output: :stdout)
       end