diff --git a/test/.excludes-mmtk/TestObjSpace.rb b/test/.excludes-mmtk/TestObjSpace.rb
index eedbc308d46c39..200faced19f17e 100644
--- a/test/.excludes-mmtk/TestObjSpace.rb
+++ b/test/.excludes-mmtk/TestObjSpace.rb
@@ -1,3 +1,4 @@
 exclude(:test_dump_all_full, "testing behaviour specific to default GC")
+exclude(:test_dump_flag_age, "testing behaviour specific to default GC")
 exclude(:test_dump_flags, "testing behaviour specific to default GC")
 exclude(:test_finalizer, "times out in debug mode on Ubuntu")