# Added for conflict with ruby/test_gc_compact.rb
# see https://bugs.ruby-lang.org/issues/15809
diff --git a/test/drb/test_drbobject.rb b/test/drb/test_drbobject.rb
index 16b252d3ce..2f8329d4c0 100644
--- a/test/drb/test_drbobject.rb
+++ b/test/drb/test_drbobject.rb
@@ -31,6 +31,7 @@ def test_DRbObject_id_dereference
   end
 end
 
+module DRbTests
 class TestDRbObject < Test::Unit::TestCase
   include DRbObjectTest
 
@@ -43,7 +44,7 @@ class TestDRbObjectTimerIdConv < Test::Unit::TestCase
   include DRbObjectTest
 
   def setup
-    DRb.start_service(nil, nil, {:idconv => DRb::TimerIdConv.new})
+    DRb.start_service(nil, nil, {:idconv => DRb::TimerIdConv.new(0.2)})
   end
 end
 
@@ -54,3 +55,4 @@ def setup
     DRb.start_service(nil, nil, {:idconv => DRb::WeakIdConv.new})
   end
 end
+end