diff --git a/Rakefile b/Rakefile
index 6ce3b4ca516c6179711416b2ae43ead0afa7c054..1db55ff39e7ef0b664e4e65bc669278461062eda 100644
--- a/Rakefile
+++ b/Rakefile
@@ -12,7 +12,7 @@ Rake::TestTask.new(:unit) do |t|
 
 	t.libs << "test"
 	t.libs << "lib"
-	t.test_files = FileList["test/**/test_*.rb"].exclude("test/property/**")
+	t.test_files = FileList["test/**/test_*.rb"].exclude("test/property/**/**")
 	t.warning = false
 end