diff --git a/test/rt_end_to_end_test.cc b/test/rt_end_to_end_test.cc
index 81f5c7e..f8820c5 100644
--- a/test/rt_end_to_end_test.cc
+++ b/test/rt_end_to_end_test.cc
@@ -115,6 +115,7 @@
       encoder->Control(AV1E_SET_TUNE_CONTENT, AOM_CONTENT_DEFAULT);
       encoder->Control(AV1E_SET_AQ_MODE, aq_mode_);
       encoder->Control(AV1E_SET_ROW_MT, 1);
+      encoder->Control(AV1E_SET_ENABLE_CDEF, 1);
     }
   }